222222202120998 has 24 divisors (see below), whose sum is σ = 502415413491888. Its totient is φ = 70853455748592.

The previous prime is 222222202120967. The next prime is 222222202120999. The reversal of 222222202120998 is 899021202222222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222202120999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268384301665 + ... + 268384302492.

It is an arithmetic number, because the mean of its divisors is an integer number (20933975562162).

Almost surely, 2^{222222202120998} is an apocalyptic number.

222222202120998 is an abundant number, since it is smaller than the sum of its proper divisors (280193211370890).

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

222222202120998 is a wasteful number, since it uses less digits than its factorization.

222222202120998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536768604188 (or 536768604185 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 222222202120998 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred two million, one hundred twenty thousand, nine hundred ninety-eight".