202212312 has 32 divisors (see below), whose sum is σ = 507714480. Its totient is φ = 67112960.

The previous prime is 202212301. The next prime is 202212313. The reversal of 202212312 is 213212202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202212291 and 202212300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202212313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12489 + ... + 23672.

Almost surely, 2^202212312 is an apocalyptic number.

It is an amenable number.

202212312 is an abundant number, since it is smaller than the sum of its proper divisors (305502168).

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

202212312 is a wasteful number, since it uses less digits than its factorization.

202212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36403 (or 36399 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 202212312 is about 14220.1375520773. The cubic root of 202212312 is about 586.9519253813.

Adding to 202212312 its reverse (213212202), we get a palindrome (415424514).

It can be divided in two parts, 2022123 and 12, that multiplied together give a square (24265476 = 4926²).

The spelling of 202212312 in words is "two hundred two million, two hundred twelve thousand, three hundred twelve".