22200022312 has 128 divisors (see below), whose sum is σ = 47396966400. Its totient is φ = 9677491200.

The previous prime is 22200022283. The next prime is 22200022321. The reversal of 22200022312 is 21322000222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30875889 + ... + 30876607.

It is an arithmetic number, because the mean of its divisors is an integer number (370288800).

Almost surely, 2^22200022312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22200022312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23698483200).

22200022312 is an abundant number, since it is smaller than the sum of its proper divisors (25196944088).

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

22200022312 is a wasteful number, since it uses less digits than its factorization.

22200022312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987 (or 983 counting only the distinct ones).

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

Adding to 22200022312 its reverse (21322000222), we get a palindrome (43522022534).

The spelling of 22200022312 in words is "twenty-two billion, two hundred million, twenty-two thousand, three hundred twelve".