220202202312 has 24 divisors (see below), whose sum is σ = 596380964790. Its totient is φ = 73400734080.

The previous prime is 220202202251. The next prime is 220202202347. The reversal of 220202202312 is 213202202022.

It can be written as a sum of positive squares in only one way, i.e., 173284043076 + 46918159236 = 416274^2 + 216606^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 5 ways as a sum of consecutive naturals, for example, 1529181889 + ... + 1529182032.

Almost surely, 2^220202202312 is an apocalyptic number.

It is an amenable number.

220202202312 is an abundant number, since it is smaller than the sum of its proper divisors (376178762478).

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

220202202312 is a wasteful number, since it uses less digits than its factorization.

220202202312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058363933 (or 3058363926 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 220202202312 its reverse (213202202022), we get a palindrome (433404404334).

The spelling of 220202202312 in words is "two hundred twenty billion, two hundred two million, two hundred two thousand, three hundred twelve".