12221002021202 has 16 divisors (see below), whose sum is σ = 20076222358080. Its totient is φ = 5544861411792.

The previous prime is 12221002021187. The next prime is 12221002021213. The reversal of 12221002021202 is 20212020012221.

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, 3983375918 + ... + 3983378985.

It is an arithmetic number, because the mean of its divisors is an integer number (1254763897380).

Almost surely, 2^{12221002021202} is an apocalyptic number.

12221002021202 is a deficient number, since it is larger than the sum of its proper divisors (7855220336878).

12221002021202 is a wasteful number, since it uses less digits than its factorization.

12221002021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7966754977.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12221002021202 its reverse (20212020012221), we get a palindrome (32433022033423).

The spelling of 12221002021202 in words is "twelve trillion, two hundred twenty-one billion, two million, twenty-one thousand, two hundred two".