22111102121112 has 96 divisors (see below), whose sum is σ = 60446569107600. Its totient is φ = 7301163098112.

The previous prime is 22111102121039. The next prime is 22111102121131. The reversal of 22111102121112 is 21112120111122.

It is a happy number.

It is a super-2 number, since 2×22111102121112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227504464 + ... + 227601632.

Almost surely, 2^{22111102121112} is an apocalyptic number.

It is an amenable number.

22111102121112 is an abundant number, since it is smaller than the sum of its proper divisors (38335466986488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22111102121112 is a wasteful number, since it uses less digits than its factorization.

22111102121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126825 (or 126818 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 22111102121112 its reverse (21112120111122), we get a palindrome (43223222232234).

The spelling of 22111102121112 in words is "twenty-two trillion, one hundred eleven billion, one hundred two million, one hundred twenty-one thousand, one hundred twelve".