12221110220122 has 16 divisors (see below), whose sum is σ = 18642732979680. Its totient is φ = 6006869909872.

The previous prime is 12221110220093. The next prime is 12221110220149. The reversal of 12221110220122 is 22102201112221.

It is a self number, because there is not a number n which added to its sum of digits gives 12221110220122.

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, 5273253 + ... + 7228375.

It is an arithmetic number, because the mean of its divisors is an integer number (1165170811230).

Almost surely, 2^{12221110220122} is an apocalyptic number.

12221110220122 is a deficient number, since it is larger than the sum of its proper divisors (6421622759558).

12221110220122 is a wasteful number, since it uses less digits than its factorization.

12221110220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008157.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12221110220122 its reverse (22102201112221), we get a palindrome (34323311332343).

The spelling of 12221110220122 in words is "twelve trillion, two hundred twenty-one billion, one hundred ten million, two hundred twenty thousand, one hundred twenty-two".