22200220312 has 32 divisors (see below), whose sum is σ = 43948699200. Its totient is φ = 10484100000.

The previous prime is 22200220307. The next prime is 22200220319. The reversal of 22200220312 is 21302200222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200220319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170314 + ... + 270937.

It is an arithmetic number, because the mean of its divisors is an integer number (1373396850).

Almost surely, 2^22200220312 is an apocalyptic number.

It is an amenable number.

22200220312 is a deficient number, since it is larger than the sum of its proper divisors (21748478888).

22200220312 is a wasteful number, since it uses less digits than its factorization.

22200220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441607 (or 441603 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22200220312 its reverse (21302200222), we get a palindrome (43502420534).

The spelling of 22200220312 in words is "twenty-two billion, two hundred million, two hundred twenty thousand, three hundred twelve".