222055398 has 16 divisors (see below), whose sum is σ = 493456560. Its totient is φ = 74018448.

The previous prime is 222055369. The next prime is 222055399. The reversal of 222055398 is 893550222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222055399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2056015 + ... + 2056122.

It is an arithmetic number, because the mean of its divisors is an integer number (30841035).

Almost surely, 2^222055398 is an apocalyptic number.

222055398 is an abundant number, since it is smaller than the sum of its proper divisors (271401162).

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

222055398 is a wasteful number, since it uses less digits than its factorization.

222055398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112148 (or 4112142 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 222055398 is about 14901.5233449470. The cubic root of 222055398 is about 605.5552564685. Note that the first 3 decimals are identical.

The spelling of 222055398 in words is "two hundred twenty-two million, fifty-five thousand, three hundred ninety-eight".