22111102210202 has 4 divisors (see below), whose sum is σ = 33166653315306. Its totient is φ = 11055551105100.

The previous prime is 22111102210177. The next prime is 22111102210271. The reversal of 22111102210202 is 20201220111122.

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., 18235641443041 + 3875460767161 = 4270321^2 + 1968619^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5527775552549 + ... + 5527775552552.

Almost surely, 2^{22111102210202} is an apocalyptic number.

22111102210202 is a deficient number, since it is larger than the sum of its proper divisors (11055551105104).

22111102210202 is a wasteful number, since it uses less digits than its factorization.

22111102210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11055551105103.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22111102210202 its reverse (20201220111122), we get a palindrome (42312322321324).

The spelling of 22111102210202 in words is "twenty-two trillion, one hundred eleven billion, one hundred two million, two hundred ten thousand, two hundred two".