22312110312 has 96 divisors (see below), whose sum is σ = 62901165600. Its totient is φ = 7409548224.

The previous prime is 22312110311. The next prime is 22312110329. The reversal of 22312110312 is 21301121322.

22312110312 is a `hidden beast` number, since 223 + 121 + 10 + 312 = 666.

It is a super-3 number, since 3×22312110312³ (a number of 32 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (22312110311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 501603 + ... + 544269.

It is an arithmetic number, because the mean of its divisors is an integer number (655220475).

Almost surely, 2^22312110312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22312110312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31450582800).

22312110312 is an abundant number, since it is smaller than the sum of its proper divisors (40589055288).

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

22312110312 is a wasteful number, since it uses less digits than its factorization.

22312110312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42957 (or 42941 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 22312110312 its reverse (21301121322), we get a palindrome (43613231634).

The spelling of 22312110312 in words is "twenty-two billion, three hundred twelve million, one hundred ten thousand, three hundred twelve".