72222214280 has 32 divisors (see below), whose sum is σ = 164457820800. Its totient is φ = 28540825536.

The previous prime is 72222214277. The next prime is 72222214313. The reversal of 72222214280 is 8241222227.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10873520 + ... + 10880159.

It is an arithmetic number, because the mean of its divisors is an integer number (5139306900).

Almost surely, 2^72222214280 is an apocalyptic number.

It is an amenable number.

72222214280 is an abundant number, since it is smaller than the sum of its proper divisors (92235606520).

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

72222214280 is a wasteful number, since it uses less digits than its factorization.

72222214280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21753773 (or 21753769 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The spelling of 72222214280 in words is "seventy-two billion, two hundred twenty-two million, two hundred fourteen thousand, two hundred eighty".