221616932934 has 32 divisors (see below), whose sum is σ = 446612940000. Its totient is φ = 73310031104.

The previous prime is 221616932917. The next prime is 221616932947. The reversal of 221616932934 is 439239616122.

It is a super-2 number, since 2×221616932934² (a number of 23 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, 879682 + ... + 1103210.

It is an arithmetic number, because the mean of its divisors is an integer number (13956654375).

Almost surely, 2^221616932934 is an apocalyptic number.

221616932934 is an abundant number, since it is smaller than the sum of its proper divisors (224996007066).

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

221616932934 is a wasteful number, since it uses less digits than its factorization.

221616932934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224792.

The product of its digits is 839808, while the sum is 48.

The spelling of 221616932934 in words is "two hundred twenty-one billion, six hundred sixteen million, nine hundred thirty-two thousand, nine hundred thirty-four".