202122312312 has 16 divisors (see below), whose sum is σ = 505305780840. Its totient is φ = 67374104096.

The previous prime is 202122312281. The next prime is 202122312397. The reversal of 202122312312 is 213213221202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4210881483 + ... + 4210881530.

Almost surely, 2^202122312312 is an apocalyptic number.

It is an amenable number.

202122312312 is an abundant number, since it is smaller than the sum of its proper divisors (303183468528).

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

202122312312 is a wasteful number, since it uses less digits than its factorization.

202122312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8421763022 (or 8421763018 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 202122312312 its reverse (213213221202), we get a palindrome (415335533514).

The spelling of 202122312312 in words is "two hundred two billion, one hundred twenty-two million, three hundred twelve thousand, three hundred twelve".