12221222202202 has 16 divisors (see below), whose sum is σ = 19945499839272. Its totient is φ = 5582413946880.

The previous prime is 12221222202017. The next prime is 12221222202251. The reversal of 12221222202202 is 20220222212221.

It can be written as a sum of positive squares in 4 ways, for example, as 6108762071281 + 6112460130921 = 2471591^2 + 2472339^2 .

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, 2422920199 + ... + 2422925242.

Almost surely, 2^{12221222202202} is an apocalyptic number.

12221222202202 is a deficient number, since it is larger than the sum of its proper divisors (7724277637070).

12221222202202 is a wasteful number, since it uses less digits than its factorization.

12221222202202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845845553.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 12221222202202 its reverse (20220222212221), we get a palindrome (32441444414423).

The spelling of 12221222202202 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred two thousand, two hundred two".