Search a number
-
+
1210211112110 = 2571113196363169
BaseRepresentation
bin10001100111000110001…
…101000001010010101110
311021200202200201100110212
4101213012031001102232
5124312003021041420
62323544024102422
7153302105503130
oct21470615012256
94250680640425
101210211112110
1142727a693820
12176669304a12
138a178c50290
1442808723050
152173139a3c5
hex119c63414ae

1210211112110 has 128 divisors (see below), whose sum is σ = 3078756172800. Its totient is φ = 329866629120.

The previous prime is 1210211112067. The next prime is 1210211112119. The reversal of 1210211112110 is 112111120121.

It is a super-2 number, since 2×12102111121102 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210211112119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2991395 + ... + 3371774.

It is an arithmetic number, because the mean of its divisors is an integer number (24052782600).

Almost surely, 21210211112110 is an apocalyptic number.

1210211112110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210211112110 is an abundant number, since it is smaller than the sum of its proper divisors (1868545060690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210211112110 is a wasteful number, since it uses less digits than its factorization.

1210211112110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6363226.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1210211112110 its reverse (112111120121), we get a palindrome (1322322232231).

The spelling of 1210211112110 in words is "one trillion, two hundred ten billion, two hundred eleven million, one hundred twelve thousand, one hundred ten".

Divisors: 1 2 5 7 10 11 13 14 19 22 26 35 38 55 65 70 77 91 95 110 130 133 143 154 182 190 209 247 266 286 385 418 455 494 665 715 770 910 1001 1045 1235 1330 1430 1463 1729 2002 2090 2470 2717 2926 3458 5005 5434 7315 8645 10010 13585 14630 17290 19019 27170 38038 95095 190190 6363169 12726338 31815845 44542183 63631690 69994859 82721197 89084366 120900211 139989718 165442394 222710915 241800422 349974295 413605985 445421830 489964013 579048379 604501055 699948590 827211970 846301477 909933167 979928026 1158096758 1209002110 1329902321 1571702743 1692602954 1819866334 2449820065 2659804642 2895241895 3143405486 4231507385 4549665835 4899640130 5790483790 6369532169 6649511605 7858513715 8463014770 9099331670 9309316247 11001919201 12739064338 13299023210 15717027430 17288730173 18618632494 22003838402 31847660845 34577460346 46546581235 55009596005 63695321690 86443650865 93093162470 110019192010 121021111211 172887301730 242042222422 605105556055 1210211112110