202440221312 has 48 divisors (see below), whose sum is σ = 469143607770. Its totient is φ = 86760092160.

The previous prime is 202440221233. The next prime is 202440221317. The reversal of 202440221312 is 213122044202.

It can be written as a sum of positive squares in only one way, i.e., 176447043136 + 25993178176 = 420056^2 + 161224^2 .

It is not an unprimeable number, because it can be changed into a prime (202440221317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16132139 + ... + 16144682.

Almost surely, 2^202440221312 is an apocalyptic number.

It is an amenable number.

202440221312 is an abundant number, since it is smaller than the sum of its proper divisors (266703386458).

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

202440221312 is an equidigital number, since it uses as much as digits as its factorization.

202440221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32276849 (or 32276830 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 202440221312 its reverse (213122044202), we get a palindrome (415562265514).

The spelling of 202440221312 in words is "two hundred two billion, four hundred forty million, two hundred twenty-one thousand, three hundred twelve".