101025504012 has 12 divisors (see below), whose sum is σ = 235726176056. Its totient is φ = 33675168000.

The previous prime is 101025504011. The next prime is 101025504077. The reversal of 101025504012 is 210405520101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×101025504012² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101025504012.

It is not an unprimeable number, because it can be changed into a prime (101025504011) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4209395989 + ... + 4209396012.

Almost surely, 2^101025504012 is an apocalyptic number.

101025504012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101025504012 is an abundant number, since it is smaller than the sum of its proper divisors (134700672044).

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

101025504012 is a wasteful number, since it uses less digits than its factorization.

101025504012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8418792008 (or 8418792006 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The spelling of 101025504012 in words is "one hundred one billion, twenty-five million, five hundred four thousand, twelve".