22321111312 has 20 divisors (see below), whose sum is σ = 43360081920. Its totient is φ = 11131412768.

The previous prime is 22321111291. The next prime is 22321111343. The reversal of 22321111312 is 21311112322.

It is a super-3 number, since 3×22321111312³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 22321111312.

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, 1815112 + ... + 1827367.

It is an arithmetic number, because the mean of its divisors is an integer number (2168004096).

Almost surely, 2^22321111312 is an apocalyptic number.

It is an amenable number.

22321111312 is a deficient number, since it is larger than the sum of its proper divisors (21038970608).

22321111312 is a wasteful number, since it uses less digits than its factorization.

22321111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642870 (or 3642864 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

Adding to 22321111312 its reverse (21311112322), we get a palindrome (43632223634).

The spelling of 22321111312 in words is "twenty-two billion, three hundred twenty-one million, one hundred eleven thousand, three hundred twelve".