22203000312 has 64 divisors (see below), whose sum is σ = 56165218560. Its totient is φ = 7313779200.

The previous prime is 22203000289. The next prime is 22203000349. The reversal of 22203000312 is 21300030222.

It is a junction number, because it is equal to n+sod(n) for n = 22203000291 and 22203000300.

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, 743053 + ... + 772355.

It is an arithmetic number, because the mean of its divisors is an integer number (877581540).

Almost surely, 2^22203000312 is an apocalyptic number.

It is an amenable number.

22203000312 is an abundant number, since it is smaller than the sum of its proper divisors (33962218248).

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

22203000312 is a wasteful number, since it uses less digits than its factorization.

22203000312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29684 (or 29680 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 22203000312 its reverse (21300030222), we get a palindrome (43503030534).

The spelling of 22203000312 in words is "twenty-two billion, two hundred three million, three hundred twelve", and thus it is an aban number.