99512012402512 has 40 divisors (see below), whose sum is σ = 197875744516800. Its totient is φ = 48464190620160.

The previous prime is 99512012402501. The next prime is 99512012402519. The reversal of 99512012402512 is 21520421021599.

It is a super-2 number, since 2×99512012402512² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99512012402519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527608137 + ... + 527796712.

It is an arithmetic number, because the mean of its divisors is an integer number (4946893612920).

Almost surely, 2^{99512012402512} is an apocalyptic number.

It is an amenable number.

99512012402512 is a deficient number, since it is larger than the sum of its proper divisors (98363732114288).

99512012402512 is a wasteful number, since it uses less digits than its factorization.

99512012402512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055405011 (or 1055405005 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 99512012402512 in words is "ninety-nine trillion, five hundred twelve billion, twelve million, four hundred two thousand, five hundred twelve".