222222012122 has 72 divisors (see below), whose sum is σ = 403815942432. Its totient is φ = 90933462400.

The previous prime is 222222012097. The next prime is 222222012137. The reversal of 222222012122 is 221210222222.

It is a junction number, because it is equal to n+sod(n) for n = 222222012094 and 222222012103.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3330347 + ... + 3396417.

It is an arithmetic number, because the mean of its divisors is an integer number (5608554756).

Almost surely, 2^222222012122 is an apocalyptic number.

222222012122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222222012122 is a deficient number, since it is larger than the sum of its proper divisors (181593930310).

222222012122 is a wasteful number, since it uses less digits than its factorization.

222222012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66164 (or 66124 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222222012122 its reverse (221210222222), we get a palindrome (443432234344).

The spelling of 222222012122 in words is "two hundred twenty-two billion, two hundred twenty-two million, twelve thousand, one hundred twenty-two".