222111110122120 has 128 divisors (see below), whose sum is σ = 542451955449600. Its totient is φ = 81571719168000.

The previous prime is 222111110122073. The next prime is 222111110122163. The reversal of 222111110122120 is 21221011111222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18897769 + ... + 28308088.

It is an arithmetic number, because the mean of its divisors is an integer number (4237905901950).

Almost surely, 2^{222111110122120} is an apocalyptic number.

222111110122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222111110122120 is an abundant number, since it is smaller than the sum of its proper divisors (320340845327480).

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

222111110122120 is a wasteful number, since it uses less digits than its factorization.

222111110122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47206079 (or 47206075 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 222111110122120 its reverse (21221011111222), we get a palindrome (243332121233342).

The spelling of 222111110122120 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred ten million, one hundred twenty-two thousand, one hundred twenty".