202221223212 has 24 divisors (see below), whose sum is σ = 488120194800. Its totient is φ = 65082692416.

The previous prime is 202221223189. The next prime is 202221223247. The reversal of 202221223212 is 212322122202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290547387 + ... + 290548082.

It is an arithmetic number, because the mean of its divisors is an integer number (20338341450).

Almost surely, 2^202221223212 is an apocalyptic number.

It is an amenable number.

202221223212 is an abundant number, since it is smaller than the sum of its proper divisors (285898971588).

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

202221223212 is a wasteful number, since it uses less digits than its factorization.

202221223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581095505 (or 581095503 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 202221223212 its reverse (212322122202), we get a palindrome (414543345414).

The spelling of 202221223212 in words is "two hundred two billion, two hundred twenty-one million, two hundred twenty-three thousand, two hundred twelve".