31112202002202 has 24 divisors (see below), whose sum is σ = 67410098391636. Its totient is φ = 10370683633536.

The previous prime is 31112202002183. The next prime is 31112202002249. The reversal of 31112202002202 is 20220020221113.

31112202002202 is a `hidden beast` number, since 31 + 11 + 220 + 200 + 2 + 202 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30459901864401 + 652300137801 = 5519049^2 + 807651^2 .

It is a super-2 number, since 2×31112202002202² (a number of 28 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289753 + ... + 7893564.

Almost surely, 2^{31112202002202} is an apocalyptic number.

31112202002202 is an abundant number, since it is smaller than the sum of its proper divisors (36297896389434).

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

31112202002202 is a wasteful number, since it uses less digits than its factorization.

31112202002202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8394542 (or 8394539 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 31112202002202 its reverse (20220020221113), we get a palindrome (51332222223315).

The spelling of 31112202002202 in words is "thirty-one trillion, one hundred twelve billion, two hundred two million, two thousand, two hundred two".