12221421120122 has 16 divisors (see below), whose sum is σ = 18414754928640. Its totient is φ = 6083170716912.

The previous prime is 12221421120109. The next prime is 12221421120173. The reversal of 12221421120122 is 22102112412221.

It is a happy number.

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, 21092279 + ... + 21663957.

It is an arithmetic number, because the mean of its divisors is an integer number (1150922183040).

Almost surely, 2^{12221421120122} is an apocalyptic number.

12221421120122 is a deficient number, since it is larger than the sum of its proper divisors (6193333808518).

12221421120122 is a wasteful number, since it uses less digits than its factorization.

12221421120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619837.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 12221421120122 its reverse (22102112412221), we get a palindrome (34323533532343).

The spelling of 12221421120122 in words is "twelve trillion, two hundred twenty-one billion, four hundred twenty-one million, one hundred twenty thousand, one hundred twenty-two".