222112122120 has 96 divisors (see below), whose sum is σ = 824987891520. Its totient is φ = 50768484480.

The previous prime is 222112122109. The next prime is 222112122131. The reversal of 222112122120 is 21221211222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222112122109) and next prime (222112122131).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222112122093 and 222112122102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44067346 + ... + 44072385.

It is an arithmetic number, because the mean of its divisors is an integer number (8593623870).

Almost surely, 2^222112122120 is an apocalyptic number.

222112122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222112122120 is an abundant number, since it is smaller than the sum of its proper divisors (602875769400).

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

222112122120 is a wasteful number, since it uses less digits than its factorization.

222112122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88139755 (or 88139748 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222112122120 its reverse (21221211222), we get a palindrome (243333333342).

The spelling of 222112122120 in words is "two hundred twenty-two billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twenty".