227222251920 has 160 divisors (see below), whose sum is σ = 782807337600. Its totient is φ = 60580763136.

The previous prime is 227222251901. The next prime is 227222251951. The reversal of 227222251920 is 29152222722.

227222251920 is a `hidden beast` number, since 227 + 22 + 225 + 192 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20823426 + ... + 20834334.

It is an arithmetic number, because the mean of its divisors is an integer number (4892545860).

Almost surely, 2^227222251920 is an apocalyptic number.

227222251920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227222251920 is an abundant number, since it is smaller than the sum of its proper divisors (555585085680).

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

227222251920 is a wasteful number, since it uses less digits than its factorization.

227222251920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20574 (or 20562 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 227222251920 in words is "two hundred twenty-seven billion, two hundred twenty-two million, two hundred fifty-one thousand, nine hundred twenty".