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12001001202 = 233811274033
BaseRepresentation
bin10110010110101000…
…01011111011110010
31010222101000000202000
423023110023323302
5144034224014302
65302503034430
7603252553461
oct131324137362
933871000660
1012001001202
1150a9285913
1223ab13ba16
131193425458
1481bbdc9d8
154a38bc31c
hex2cb50bef2

12001001202 has 32 divisors (see below), whose sum is σ = 26701872960. Its totient is φ = 3995386560.

The previous prime is 12001001149. The next prime is 12001001239. The reversal of 12001001202 is 20210010021.

It is a Harshad number since it is a multiple of its sum of digits (9).

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 15 ways as a sum of consecutive naturals, for example, 93223 + ... + 180810.

It is an arithmetic number, because the mean of its divisors is an integer number (834433530).

Almost surely, 212001001202 is an apocalyptic number.

12001001202 is an abundant number, since it is smaller than the sum of its proper divisors (14700871758).

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

12001001202 is a wasteful number, since it uses less digits than its factorization.

12001001202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274855 (or 274849 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12001001202 its reverse (20210010021), we get a palindrome (32211011223).

The spelling of 12001001202 in words is "twelve billion, one million, one thousand, two hundred two".

Divisors: 1 2 3 6 9 18 27 54 811 1622 2433 4866 7299 14598 21897 43794 274033 548066 822099 1644198 2466297 4932594 7398891 14797782 222240763 444481526 666722289 1333444578 2000166867 4000333734 6000500601 12001001202