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1220112010 = 251347397503
BaseRepresentation
bin100100010111001…
…0110111010001010
310011000212010000201
41020232112322022
54444322041020
6321023122414
742143531605
oct11056267212
93130763021
101220112010
115767a3237
122a074340a
13165a16890
14b808733c
15721aea0a
hex48b96e8a

1220112010 has 64 divisors (see below), whose sum is σ = 2426360832. Its totient is φ = 438932736.

The previous prime is 1220112007. The next prime is 1220112013. The reversal of 1220112010 is 102110221.

It is an interprime number because it is at equal distance from previous prime (1220112007) and next prime (1220112013).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1220112013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2425419 + ... + 2425921.

It is an arithmetic number, because the mean of its divisors is an integer number (37911888).

Almost surely, 21220112010 is an apocalyptic number.

1220112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220112010 is a deficient number, since it is larger than the sum of its proper divisors (1206248822).

1220112010 is a wasteful number, since it uses less digits than its factorization.

1220112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1220112010 is about 34930.1017748303. The cubic root of 1220112010 is about 1068.5624302452.

Adding to 1220112010 its reverse (102110221), we get a palindrome (1322222231).

The spelling of 1220112010 in words is "one billion, two hundred twenty million, one hundred twelve thousand, ten".

Divisors: 1 2 5 10 13 26 47 65 94 130 235 397 470 503 611 794 1006 1222 1985 2515 3055 3970 5030 5161 6110 6539 10322 13078 18659 23641 25805 32695 37318 47282 51610 65390 93295 118205 186590 199691 236410 242567 307333 399382 485134 614666 998455 1212835 1536665 1996910 2425670 2595983 3073330 5191966 9385477 12979915 18770954 25959830 46927385 93854770 122011201 244022402 610056005 1220112010