222212210012120 has 64 divisors (see below), whose sum is σ = 510619018331520. Its totient is φ = 86993081250304.

The previous prime is 222212210012069. The next prime is 222212210012123. The reversal of 222212210012120 is 21210012212222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 222212210012092 and 222212210012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212210012123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320782454 + ... + 321474426.

It is an arithmetic number, because the mean of its divisors is an integer number (7978422161430).

Almost surely, 2^{222212210012120} is an apocalyptic number.

222212210012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222212210012120 is an abundant number, since it is smaller than the sum of its proper divisors (288406808319400).

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

222212210012120 is a wasteful number, since it uses less digits than its factorization.

222212210012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862844 (or 862840 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222212210012120 its reverse (21210012212222), we get a palindrome (243422222224342).

The spelling of 222212210012120 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred ten million, twelve thousand, one hundred twenty".