12222111220122 has 64 divisors (see below), whose sum is σ = 25854790680576. Its totient is φ = 3845672268480.

The previous prime is 12222111220087. The next prime is 12222111220139. The reversal of 12222111220122 is 22102211122221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4820143 + ... + 6904925.

It is an arithmetic number, because the mean of its divisors is an integer number (403981104384).

Almost surely, 2^{12222111220122} is an apocalyptic number.

12222111220122 is an abundant number, since it is smaller than the sum of its proper divisors (13632679460454).

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

12222111220122 is a wasteful number, since it uses less digits than its factorization.

12222111220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085595.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12222111220122 its reverse (22102211122221), we get a palindrome (34324322342343).

The spelling of 12222111220122 in words is "twelve trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty thousand, one hundred twenty-two".