3221638811072 has 56 divisors (see below), whose sum is σ = 6997918726512. Its totient is φ = 1459383296000.

The previous prime is 3221638811059. The next prime is 3221638811101. The reversal of 3221638811072 is 2701188361223.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 7602929 + ... + 8015472.

It is an arithmetic number, because the mean of its divisors is an integer number (124962834402).

Almost surely, 2^{3221638811072} is an apocalyptic number.

3221638811072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3221638811072 is an abundant number, since it is smaller than the sum of its proper divisors (3776279915440).

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

3221638811072 is a wasteful number, since it uses less digits than its factorization.

3221638811072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15618717 (or 15618707 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 3221638811072 in words is "three trillion, two hundred twenty-one billion, six hundred thirty-eight million, eight hundred eleven thousand, seventy-two".