222012122120 has 32 divisors (see below), whose sum is σ = 499713283800. Its totient is φ = 88771780608.

The previous prime is 222012122119. The next prime is 222012122179. The reversal of 222012122120 is 21221210222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 82239327076 + 139772795044 = 286774^2 + 373862^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924479 + ... + 1139598.

Almost surely, 2^222012122120 is an apocalyptic number.

222012122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222012122120 is an abundant number, since it is smaller than the sum of its proper divisors (277701161680).

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

222012122120 is a wasteful number, since it uses less digits than its factorization.

222012122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066777 (or 2066773 counting only the distinct ones).

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

Adding to 222012122120 its reverse (21221210222), we get a palindrome (243233332342).

The spelling of 222012122120 in words is "two hundred twenty-two billion, twelve million, one hundred twenty-two thousand, one hundred twenty".