22011122112112 has 20 divisors (see below), whose sum is σ = 48738913248496. Its totient is φ = 9433338048000.

The previous prime is 22011122112047. The next prime is 22011122112131. The reversal of 22011122112112 is 21121122111022.

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 22011122112112.

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, 98263937889 + ... + 98263938112.

Almost surely, 2^{22011122112112} is an apocalyptic number.

It is an amenable number.

22011122112112 is an abundant number, since it is smaller than the sum of its proper divisors (26727791136384).

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

22011122112112 is a wasteful number, since it uses less digits than its factorization.

22011122112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196527876016 (or 196527876010 counting only the distinct ones).

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

Adding to 22011122112112 its reverse (21121122111022), we get a palindrome (43132244223134).

The spelling of 22011122112112 in words is "twenty-two trillion, eleven billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twelve".