22220313312 has 48 divisors (see below), whose sum is σ = 58340362752. Its totient is φ = 7405242240.

The previous prime is 22220313307. The next prime is 22220313359. The reversal of 22220313312 is 21331302222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504063 + ... + 546369.

It is an arithmetic number, because the mean of its divisors is an integer number (1215424224).

Almost surely, 2^22220313312 is an apocalyptic number.

It is an amenable number.

22220313312 is an abundant number, since it is smaller than the sum of its proper divisors (36120049440).

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

22220313312 is a wasteful number, since it uses less digits than its factorization.

22220313312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47791 (or 47783 counting only the distinct ones).

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

Adding to 22220313312 its reverse (21331302222), we get a palindrome (43551615534).

The spelling of 22220313312 in words is "twenty-two billion, two hundred twenty million, three hundred thirteen thousand, three hundred twelve".