22313223212 has 12 divisors (see below), whose sum is σ = 44626446480. Its totient is φ = 9562809936.

The previous prime is 22313223209. The next prime is 22313223221. The reversal of 22313223212 is 21232231322.

22313223212 is an admirable number.

It is a super-3 number, since 3×22313223212³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398450387 + ... + 398450442.

It is an arithmetic number, because the mean of its divisors is an integer number (3718870540).

Almost surely, 2^22313223212 is an apocalyptic number.

It is an amenable number.

22313223212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22313223212 is a wasteful number, since it uses less digits than its factorization.

22313223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796900840 (or 796900838 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

Adding to 22313223212 its reverse (21232231322), we get a palindrome (43545454534).

The spelling of 22313223212 in words is "twenty-two billion, three hundred thirteen million, two hundred twenty-three thousand, two hundred twelve".