22321012122 has 12 divisors (see below), whose sum is σ = 48362192970. Its totient is φ = 7440337368.

The previous prime is 22321012099. The next prime is 22321012123. The reversal of 22321012122 is 22121012322.

It can be written as a sum of positive squares in only one way, i.e., 21558755241 + 762256881 = 146829^2 + 27609^2 .

It is a super-3 number, since 3×22321012122³ (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), and also a Moran number because the ratio is a prime number: 1240056229 = 22321012122 / (2 + 2 + 3 + 2 + 1 + 0 + 1 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 22321012095 and 22321012104.

It is not an unprimeable number, because it can be changed into a prime (22321012123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 620028097 + ... + 620028132.

Almost surely, 2^22321012122 is an apocalyptic number.

22321012122 is an abundant number, since it is smaller than the sum of its proper divisors (26041180848).

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

22321012122 is a wasteful number, since it uses less digits than its factorization.

22321012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240056237 (or 1240056234 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22321012122 its reverse (22121012322), we get a palindrome (44442024444).

The spelling of 22321012122 in words is "twenty-two billion, three hundred twenty-one million, twelve thousand, one hundred twenty-two".