22322122312 has 64 divisors (see below), whose sum is σ = 48655958400. Its totient is φ = 9403430400.

The previous prime is 22322122309. The next prime is 22322122327. The reversal of 22322122312 is 21322122322.

It is a super-3 number, since 3×22322122312³ (a number of 32 digits) contains 333 as substring.

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, 771988 + ... + 800380.

It is an arithmetic number, because the mean of its divisors is an integer number (760249350).

Almost surely, 2^22322122312 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 22322122312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24327979200).

22322122312 is an abundant number, since it is smaller than the sum of its proper divisors (26333836088).

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

22322122312 is a wasteful number, since it uses less digits than its factorization.

22322122312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28646 (or 28642 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

Adding to 22322122312 its reverse (21322122322), we get a palindrome (43644244634).

The spelling of 22322122312 in words is "twenty-two billion, three hundred twenty-two million, one hundred twenty-two thousand, three hundred twelve".