222948979398 has 24 divisors (see below), whose sum is σ = 494289987048. Its totient is φ = 72588039552.

The previous prime is 222948979289. The next prime is 222948979417. The reversal of 222948979398 is 893979849222.

222948979398 is a `hidden beast` number, since 2 + 2 + 2 + 94 + 89 + 79 + 398 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144023115 + ... + 144024662.

It is an arithmetic number, because the mean of its divisors is an integer number (20595416127).

Almost surely, 2^222948979398 is an apocalyptic number.

222948979398 is an abundant number, since it is smaller than the sum of its proper divisors (271341007650).

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

222948979398 is a wasteful number, since it uses less digits than its factorization.

222948979398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288047828 (or 288047825 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 72.

The spelling of 222948979398 in words is "two hundred twenty-two billion, nine hundred forty-eight million, nine hundred seventy-nine thousand, three hundred ninety-eight".