12213221002122 has 16 divisors (see below), whose sum is σ = 27915933719232. Its totient is φ = 3489491714880.

The previous prime is 12213221002063. The next prime is 12213221002159. The reversal of 12213221002122 is 22120012231221.

12213221002122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 145395488079 + ... + 145395488162.

It is an arithmetic number, because the mean of its divisors is an integer number (1744745857452).

Almost surely, 2^{12213221002122} is an apocalyptic number.

12213221002122 is an abundant number, since it is smaller than the sum of its proper divisors (15702712717110).

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

12213221002122 is a wasteful number, since it uses less digits than its factorization.

12213221002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290790976253.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12213221002122 its reverse (22120012231221), we get a palindrome (34333233233343).

The spelling of 12213221002122 in words is "twelve trillion, two hundred thirteen billion, two hundred twenty-one million, two thousand, one hundred twenty-two".