7221071028264 has 32 divisors (see below), whose sum is σ = 18436777096320. Its totient is φ = 2355810406016.

The previous prime is 7221071028247. The next prime is 7221071028277. The reversal of 7221071028264 is 4628201701227.

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, 3200828229 + ... + 3200830484.

It is an arithmetic number, because the mean of its divisors is an integer number (576149284260).

Almost surely, 2^{7221071028264} is an apocalyptic number.

It is an amenable number.

7221071028264 is an abundant number, since it is smaller than the sum of its proper divisors (11215706068056).

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

7221071028264 is a wasteful number, since it uses less digits than its factorization.

7221071028264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401658769 (or 6401658765 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 7221071028264 in words is "seven trillion, two hundred twenty-one billion, seventy-one million, twenty-eight thousand, two hundred sixty-four".