222021122120 has 64 divisors (see below), whose sum is σ = 584836156800. Its totient is φ = 74264901120.

The previous prime is 222021122093. The next prime is 222021122159. The reversal of 222021122120 is 21221120222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9658430 + ... + 9681389.

It is an arithmetic number, because the mean of its divisors is an integer number (9138064950).

Almost surely, 2^222021122120 is an apocalyptic number.

222021122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222021122120 is an abundant number, since it is smaller than the sum of its proper divisors (362815034680).

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

222021122120 is a wasteful number, since it uses less digits than its factorization.

222021122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19339878 (or 19339874 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222021122120 its reverse (21221120222), we get a palindrome (243242242342).

The spelling of 222021122120 in words is "two hundred twenty-two billion, twenty-one million, one hundred twenty-two thousand, one hundred twenty".