22022313312 has 24 divisors (see below), whose sum is σ = 57808572696. Its totient is φ = 7340771072.

The previous prime is 22022313311. The next prime is 22022313319. The reversal of 22022313312 is 21331322022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×22022313312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022313311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114699453 + ... + 114699644.

It is an arithmetic number, because the mean of its divisors is an integer number (2408690529).

Almost surely, 2^22022313312 is an apocalyptic number.

It is an amenable number.

22022313312 is an abundant number, since it is smaller than the sum of its proper divisors (35786259384).

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

22022313312 is a wasteful number, since it uses less digits than its factorization.

22022313312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229399110 (or 229399102 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22022313312 its reverse (21331322022), we get a palindrome (43353635334).

The spelling of 22022313312 in words is "twenty-two billion, twenty-two million, three hundred thirteen thousand, three hundred twelve".