202022031312 has 140 divisors (see below), whose sum is σ = 591483333120. Its totient is φ = 66809945664.

The previous prime is 202022031287. The next prime is 202022031383. The reversal of 202022031312 is 213130220202.

It is a super-2 number, since 2×202022031312² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1413139 + ... + 1549517.

Almost surely, 2^202022031312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202022031312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295741666560).

202022031312 is an abundant number, since it is smaller than the sum of its proper divisors (389461301808).

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

202022031312 is a wasteful number, since it uses less digits than its factorization.

202022031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136532 (or 136511 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 202022031312 its reverse (213130220202), we get a palindrome (415152251514).

The spelling of 202022031312 in words is "two hundred two billion, twenty-two million, thirty-one thousand, three hundred twelve".