221995202166832 has 40 divisors (see below), whose sum is σ = 430768525009680. Its totient is φ = 110829164770560.

The previous prime is 221995202166811. The next prime is 221995202166883. The reversal of 221995202166832 is 238661202599122.

It is a super-2 number, since 2×221995202166832² (a number of 29 digits) contains 22 as substring.

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, 105260478 + ... + 107348770.

It is an arithmetic number, because the mean of its divisors is an integer number (10769213125242).

Almost surely, 2^{221995202166832} is an apocalyptic number.

It is an amenable number.

221995202166832 is a deficient number, since it is larger than the sum of its proper divisors (208773322842848).

221995202166832 is a wasteful number, since it uses less digits than its factorization.

221995202166832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098381 (or 2098375 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 221995202166832 in words is "two hundred twenty-one trillion, nine hundred ninety-five billion, two hundred two million, one hundred sixty-six thousand, eight hundred thirty-two".