22211112220202 has 4 divisors (see below), whose sum is σ = 33316668330306. Its totient is φ = 11105556110100.

The previous prime is 22211112220139. The next prime is 22211112220247. The reversal of 22211112220202 is 20202221111222.

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., 13029854676721 + 9181257543481 = 3609689^2 + 3030059^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5552778055049 + ... + 5552778055052.

Almost surely, 2^{22211112220202} is an apocalyptic number.

22211112220202 is a deficient number, since it is larger than the sum of its proper divisors (11105556110104).

22211112220202 is a wasteful number, since it uses less digits than its factorization.

22211112220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11105556110103.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22211112220202 its reverse (20202221111222), we get a palindrome (42413333331424).

The spelling of 22211112220202 in words is "twenty-two trillion, two hundred eleven billion, one hundred twelve million, two hundred twenty thousand, two hundred two".