221022886264 has 32 divisors (see below), whose sum is σ = 424558940400. Its totient is φ = 107807591680.

The previous prime is 221022886241. The next prime is 221022886297. The reversal of 221022886264 is 462688220122.

It is a super-2 number, since 2×221022886264² (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 221022886264.

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, 7055067 + ... + 7086325.

Almost surely, 2^221022886264 is an apocalyptic number.

It is an amenable number.

221022886264 is a deficient number, since it is larger than the sum of its proper divisors (203536054136).

221022886264 is a wasteful number, since it uses less digits than its factorization.

221022886264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52863 (or 52859 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The spelling of 221022886264 in words is "two hundred twenty-one billion, twenty-two million, eight hundred eighty-six thousand, two hundred sixty-four".