72221464290 has 16 divisors (see below), whose sum is σ = 173331514368. Its totient is φ = 19259057136.

The previous prime is 72221464283. The next prime is 72221464349. The reversal of 72221464290 is 9246412227.

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, 1203691042 + ... + 1203691101.

It is an arithmetic number, because the mean of its divisors is an integer number (10833219648).

Almost surely, 2^72221464290 is an apocalyptic number.

72221464290 is an abundant number, since it is smaller than the sum of its proper divisors (101110050078).

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

72221464290 is a wasteful number, since it uses less digits than its factorization.

72221464290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407382153.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 72221464290 in words is "seventy-two billion, two hundred twenty-one million, four hundred sixty-four thousand, two hundred ninety".