22122303312 has 20 divisors (see below), whose sum is σ = 57149283680. Its totient is φ = 7374101088.

The previous prime is 22122303311. The next prime is 22122303317. The reversal of 22122303312 is 21330322122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122303311) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 230440612 + ... + 230440707.

It is an arithmetic number, because the mean of its divisors is an integer number (2857464184).

Almost surely, 2^22122303312 is an apocalyptic number.

It is an amenable number.

22122303312 is an abundant number, since it is smaller than the sum of its proper divisors (35026980368).

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

22122303312 is a wasteful number, since it uses less digits than its factorization.

22122303312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460881330 (or 460881324 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22122303312 its reverse (21330322122), we get a palindrome (43452625434).

The spelling of 22122303312 in words is "twenty-two billion, one hundred twenty-two million, three hundred three thousand, three hundred twelve".