12221102202202 has 4 divisors (see below), whose sum is σ = 18331653303306. Its totient is φ = 6110551101100.

The previous prime is 12221102202151. The next prime is 12221102202223. The reversal of 12221102202202 is 20220220112221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8107794961561 + 4113307240641 = 2847419^2 + 2028129^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12221102202202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055275550549 + ... + 3055275550552.

Almost surely, 2^{12221102202202} is an apocalyptic number.

12221102202202 is a deficient number, since it is larger than the sum of its proper divisors (6110551101104).

12221102202202 is an equidigital number, since it uses as much as digits as its factorization.

12221102202202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110551101103.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12221102202202 its reverse (20220220112221), we get a palindrome (32441322314423).

The spelling of 12221102202202 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, two hundred two thousand, two hundred two".