51101272234812 has 48 divisors (see below), whose sum is σ = 122389283520000. Its totient is φ = 16584996627840.

The previous prime is 51101272234783. The next prime is 51101272234897. The reversal of 51101272234812 is 21843227210115.

It is a super-2 number, since 2×51101272234812² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103827012 + ... + 104318027.

It is an arithmetic number, because the mean of its divisors is an integer number (2549776740000).

Almost surely, 2^{51101272234812} is an apocalyptic number.

It is an amenable number.

51101272234812 is an abundant number, since it is smaller than the sum of its proper divisors (71288011285188).

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

51101272234812 is a wasteful number, since it uses less digits than its factorization.

51101272234812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208145586 (or 208145584 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

Adding to 51101272234812 its reverse (21843227210115), we get a palindrome (72944499444927).

The spelling of 51101272234812 in words is "fifty-one trillion, one hundred one billion, two hundred seventy-two million, two hundred thirty-four thousand, eight hundred twelve".