22312133440 has 56 divisors (see below), whose sum is σ = 54844687872. Its totient is φ = 8636951040.

The previous prime is 22312133401. The next prime is 22312133449. The reversal of 22312133440 is 4433121322.

It is a super-3 number, since 3×22312133440³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22312133449) 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 7 ways as a sum of consecutive naturals, for example, 1114684 + ... + 1134523.

Almost surely, 2^22312133440 is an apocalyptic number.

22312133440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22312133440 is an abundant number, since it is smaller than the sum of its proper divisors (32532554432).

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

22312133440 is a wasteful number, since it uses less digits than its factorization.

22312133440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249255 (or 2249245 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 22312133440 its reverse (4433121322), we get a palindrome (26745254762).

The spelling of 22312133440 in words is "twenty-two billion, three hundred twelve million, one hundred thirty-three thousand, four hundred forty".