Search a number
-
+
12021111100210 = 251202111110021
BaseRepresentation
bin1010111011101110001000…
…0011101001001100110010
31120120012120220100002222211
42232323202003221030302
53033423213420201320
641322231110122334
72350332224263432
oct256734203511462
946505526302884
1012021111100210
11391514090a963
1214219319503aa
13692780333764
142d7b796922c2
1515ca6b4b655a
hexaeee20e9332

12021111100210 has 8 divisors (see below), whose sum is σ = 21637999980396. Its totient is φ = 4808444440080.

The previous prime is 12021111100129. The next prime is 12021111100217. The reversal of 12021111100210 is 1200111112021.

It is a happy number.

12021111100210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11707339716801 + 313771383409 = 3421599^2 + 560153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×120211111002102 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12021111100217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601055555001 + ... + 601055555020.

Almost surely, 212021111100210 is an apocalyptic number.

12021111100210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021111100210 is a deficient number, since it is larger than the sum of its proper divisors (9616888880186).

12021111100210 is a wasteful number, since it uses less digits than its factorization.

12021111100210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202111110028.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12021111100210 its reverse (1200111112021), we get a palindrome (13221222212231).

The spelling of 12021111100210 in words is "twelve trillion, twenty-one billion, one hundred eleven million, one hundred thousand, two hundred ten".

Divisors: 1 2 5 10 1202111110021 2404222220042 6010555550105 12021111100210