22320311212 has 12 divisors (see below), whose sum is σ = 39204681376. Its totient is φ = 11118973680.

The previous prime is 22320311207. The next prime is 22320311213. The reversal of 22320311212 is 21211302322.

It is a super-3 number, since 3×22320311212³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22320311212.

It is not an unprimeable number, because it can be changed into a prime (22320311213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10294263 + ... + 10296430.

Almost surely, 2^22320311212 is an apocalyptic number.

It is an amenable number.

22320311212 is a deficient number, since it is larger than the sum of its proper divisors (16884370164).

22320311212 is a wasteful number, since it uses less digits than its factorization.

22320311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20590968 (or 20590966 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22320311212 its reverse (21211302322), we get a palindrome (43531613534).

The spelling of 22320311212 in words is "twenty-two billion, three hundred twenty million, three hundred eleven thousand, two hundred twelve".