56217051116212 has 24 divisors (see below), whose sum is σ = 112586245849280. Its totient is φ = 24060419703360.

The previous prime is 56217051116173. The next prime is 56217051116299. The reversal of 56217051116212 is 21261115071265.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358404089 + ... + 1358445472.

Almost surely, 2^{56217051116212} is an apocalyptic number.

It is an amenable number.

56217051116212 is an abundant number, since it is smaller than the sum of its proper divisors (56369194733068).

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

56217051116212 is a wasteful number, since it uses less digits than its factorization.

56217051116212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716850311 (or 2716850309 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 40.

Adding to 56217051116212 its reverse (21261115071265), we get a palindrome (77478166187477).

The spelling of 56217051116212 in words is "fifty-six trillion, two hundred seventeen billion, fifty-one million, one hundred sixteen thousand, two hundred twelve".