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12012002002 = 2731113122449
BaseRepresentation
bin10110010111111100…
…01001101011010010
31011000010200221000001
423023332021223102
5144100033031002
65303534520214
7603445222000
oct131376115322
934003627001
1012012002002
115104509990
1223b296606a
1311957a76c0
1481d463a70
154a4841a87
hex2cbf89ad2

12012002002 has 64 divisors (see below), whose sum is σ = 24685920000. Its totient is φ = 4319965440.

The previous prime is 12012001999. The next prime is 12012002021. The reversal of 12012002002 is 20020021021.

It is a self number, because there is not a number n which added to its sum of digits gives 12012002002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36874 + ... + 159322.

It is an arithmetic number, because the mean of its divisors is an integer number (385717500).

Almost surely, 212012002002 is an apocalyptic number.

12012002002 is an abundant number, since it is smaller than the sum of its proper divisors (12673917998).

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

12012002002 is a wasteful number, since it uses less digits than its factorization.

12012002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122496 (or 122482 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12012002002 its reverse (20020021021), we get a palindrome (32032023023).

The spelling of 12012002002 in words is "twelve billion, twelve million, two thousand, two".

Divisors: 1 2 7 11 13 14 22 26 49 77 91 98 143 154 182 286 343 539 637 686 1001 1078 1274 2002 3773 4459 7007 7546 8918 14014 49049 98098 122449 244898 857143 1346939 1591837 1714286 2693878 3183674 6000001 9428573 11142859 12000002 17510207 18857146 22285718 35020414 42000007 66000011 78000013 84000014 122571449 132000022 156000026 245142898 462000077 546000091 858000143 924000154 1092000182 1716000286 6006001001 12012002002