22111111222102 has 32 divisors (see below), whose sum is σ = 38679098875200. Its totient is φ = 9476001823680.

The previous prime is 22111111222093. The next prime is 22111111222153. The reversal of 22111111222102 is 20122211111122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22111111222102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37379602 + ... + 37966522.

It is an arithmetic number, because the mean of its divisors is an integer number (1208721839850).

Almost surely, 2^{22111111222102} is an apocalyptic number.

22111111222102 is a deficient number, since it is larger than the sum of its proper divisors (16567987653098).

22111111222102 is an equidigital number, since it uses as much as digits as its factorization.

22111111222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641861 (or 641847 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22111111222102 its reverse (20122211111122), we get a palindrome (42233322333224).

The spelling of 22111111222102 in words is "twenty-two trillion, one hundred eleven billion, one hundred eleven million, two hundred twenty-two thousand, one hundred two".