22220221002312 has 64 divisors (see below), whose sum is σ = 57054719635200. Its totient is φ = 7206204372480.

The previous prime is 22220221002293. The next prime is 22220221002323. The reversal of 22220221002312 is 21320012202222.

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 15 ways as a sum of consecutive naturals, for example, 17794612 + ... + 19002332.

It is an arithmetic number, because the mean of its divisors is an integer number (891479994300).

Almost surely, 2^{22220221002312} is an apocalyptic number.

It is an amenable number.

22220221002312 is an abundant number, since it is smaller than the sum of its proper divisors (34834498632888).

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

22220221002312 is a wasteful number, since it uses less digits than its factorization.

22220221002312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228486 (or 1228482 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22220221002312 its reverse (21320012202222), we get a palindrome (43540233204534).

The spelling of 22220221002312 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty-one million, two thousand, three hundred twelve".