22131012112 has 40 divisors (see below), whose sum is σ = 46785255552. Its totient is φ = 10057756800.

The previous prime is 22131012089. The next prime is 22131012119. The reversal of 22131012112 is 21121013122.

It is a super-4 number, since 4×22131012112⁴ (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (22131012119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1950937 + ... + 1962247.

Almost surely, 2^22131012112 is an apocalyptic number.

22131012112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22131012112 is an abundant number, since it is smaller than the sum of its proper divisors (24654243440).

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

22131012112 is a wasteful number, since it uses less digits than its factorization.

22131012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22447 (or 22441 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 22131012112 its reverse (21121013122), we get a palindrome (43252025234).

The spelling of 22131012112 in words is "twenty-two billion, one hundred thirty-one million, twelve thousand, one hundred twelve".