22312332220 has 48 divisors (see below), whose sum is σ = 47042946720. Its totient is φ = 8889368576.

The previous prime is 22312332209. The next prime is 22312332239. The reversal of 22312332220 is 2223321322.

It is a super-3 number, since 3×22312332220³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22312332191 and 22312332200.

It is a congruent number.

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, 9946419 + ... + 9948661.

It is an arithmetic number, because the mean of its divisors is an integer number (980061390).

Almost surely, 2^22312332220 is an apocalyptic number.

22312332220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22312332220 is an abundant number, since it is smaller than the sum of its proper divisors (24730614500).

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

22312332220 is a wasteful number, since it uses less digits than its factorization.

22312332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014 (or 4012 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 22312332220 its reverse (2223321322), we get a palindrome (24535653542).

The spelling of 22312332220 in words is "twenty-two billion, three hundred twelve million, three hundred thirty-two thousand, two hundred twenty".