22310322012 has 72 divisors (see below), whose sum is σ = 63185212272. Its totient is φ = 6577977600.

The previous prime is 22310321993. The next prime is 22310322031. The reversal of 22310322012 is 21022301322.

22310322012 is a `hidden beast` number, since 22 + 310 + 322 + 0 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (22310321993) and next prime (22310322031).

It is a super-3 number, since 3×22310322012³ (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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 746689 + ... + 775992.

Almost surely, 2^22310322012 is an apocalyptic number.

22310322012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22310322012 is an abundant number, since it is smaller than the sum of its proper divisors (40874890260).

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

22310322012 is a wasteful number, since it uses less digits than its factorization.

22310322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522739 (or 1522734 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22310322012 its reverse (21022301322), we get a palindrome (43332623334).

The spelling of 22310322012 in words is "twenty-two billion, three hundred ten million, three hundred twenty-two thousand, twelve".