222111110110120 has 128 divisors (see below), whose sum is σ = 623201999247360. Its totient is φ = 69214207253760.

The previous prime is 222111110110117. The next prime is 222111110110159. The reversal of 222111110110120 is 21011011111222.

It is a junction number, because it is equal to n+sod(n) for n = 222111110110094 and 222111110110103.

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, 6074917 + ... + 21934603.

It is an arithmetic number, because the mean of its divisors is an integer number (4868765619120).

Almost surely, 2^{222111110110120} is an apocalyptic number.

222111110110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222111110110120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311600999623680).

222111110110120 is an abundant number, since it is smaller than the sum of its proper divisors (401090889137240).

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

222111110110120 is a wasteful number, since it uses less digits than its factorization.

222111110110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15864263 (or 15864259 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 222111110110120 its reverse (21011011111222), we get a palindrome (243122121221342).

The spelling of 222111110110120 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred ten million, one hundred ten thousand, one hundred twenty".