222122112222120 has 512 divisors, whose sum is σ = 757008077045760. Its totient is φ = 52082417587200.

The previous prime is 222122112222107. The next prime is 222122112222149. The reversal of 222122112222120 is 21222211221222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9917482762 + ... + 9917505158.

It is an arithmetic number, because the mean of its divisors is an integer number (1478531400480).

Almost surely, 2^{222122112222120} is an apocalyptic number.

222122112222120 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 222122112222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378504038522880).

222122112222120 is an abundant number, since it is smaller than the sum of its proper divisors (534885964823640).

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

222122112222120 is a wasteful number, since it uses less digits than its factorization.

222122112222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24478 (or 24452 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 222122112222120 its reverse (21222211221222), we get a palindrome (243344323443342).

The spelling of 222122112222120 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twenty-two thousand, one hundred twenty".