56922200221966 has 16 divisors (see below), whose sum is σ = 86105524299984. Its totient is φ = 28221165293184.

The previous prime is 56922200221961. The next prime is 56922200221967. The reversal of 56922200221966 is 66912200222965.

It is a super-2 number, since 2×56922200221966² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56922200221961) 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, 201484681 + ... + 201766996.

It is an arithmetic number, because the mean of its divisors is an integer number (5381595268749).

Almost surely, 2^{56922200221966} is an apocalyptic number.

56922200221966 is a deficient number, since it is larger than the sum of its proper divisors (29183324078018).

56922200221966 is a wasteful number, since it uses less digits than its factorization.

56922200221966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403252275.

The product of its (nonzero) digits is 2799360, while the sum is 52.

Subtracting 56922200221966 from its reverse (66912200222965), we obtain a palindrome (9990000000999).

The spelling of 56922200221966 in words is "fifty-six trillion, nine hundred twenty-two billion, two hundred million, two hundred twenty-one thousand, nine hundred sixty-six".