22111222121102 has 8 divisors (see below), whose sum is σ = 33202534834800. Its totient is φ = 11043710509504.

The previous prime is 22111222121099. The next prime is 22111222121143. The reversal of 22111222121102 is 20112122211122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22111222121102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5950273202 + ... + 5950276917.

It is an arithmetic number, because the mean of its divisors is an integer number (4150316854350).

Almost surely, 2^{22111222121102} is an apocalyptic number.

22111222121102 is a deficient number, since it is larger than the sum of its proper divisors (11091312713698).

22111222121102 is a wasteful number, since it uses less digits than its factorization.

22111222121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11900551050.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22111222121102 its reverse (20112122211122), we get a palindrome (42223344332224).

The spelling of 22111222121102 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred two".