222120111120 has 40 divisors (see below), whose sum is σ = 688572345216. Its totient is φ = 59232029568.

The previous prime is 222120111071. The next prime is 222120111127. The reversal of 222120111120 is 21111021222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×222120111120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 222120111120.

It is not an unprimeable number, because it can be changed into a prime (222120111127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462749992 + ... + 462750471.

Almost surely, 2^222120111120 is an apocalyptic number.

222120111120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120111120 is an abundant number, since it is smaller than the sum of its proper divisors (466452234096).

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

222120111120 is a wasteful number, since it uses less digits than its factorization.

222120111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925500479 (or 925500473 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222120111120 its reverse (21111021222), we get a palindrome (243231132342).

The spelling of 222120111120 in words is "two hundred twenty-two billion, one hundred twenty million, one hundred eleven thousand, one hundred twenty".