22122011121112 has 64 divisors (see below), whose sum is σ = 47647438755840. Its totient is φ = 9432241123200.

The previous prime is 22122011121107. The next prime is 22122011121191. The reversal of 22122011121112 is 21112111022122.

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 22122011121112.

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, 276101937 + ... + 276182047.

It is an arithmetic number, because the mean of its divisors is an integer number (744491230560).

Almost surely, 2^{22122011121112} is an apocalyptic number.

It is an amenable number.

22122011121112 is an abundant number, since it is smaller than the sum of its proper divisors (25525427634728).

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

22122011121112 is a wasteful number, since it uses less digits than its factorization.

22122011121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105352 (or 105348 counting only the distinct ones).

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

Adding to 22122011121112 its reverse (21112111022122), we get a palindrome (43234122143234).

The spelling of 22122011121112 in words is "twenty-two trillion, one hundred twenty-two billion, eleven million, one hundred twenty-one thousand, one hundred twelve".