202221221212 has 6 divisors (see below), whose sum is σ = 353887137128. Its totient is φ = 101110610604.

The previous prime is 202221221183. The next prime is 202221221297. The reversal of 202221221212 is 212122122202.

It is a self number, because there is not a number n which added to its sum of digits gives 202221221212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25277652648 + ... + 25277652655.

Almost surely, 2^202221221212 is an apocalyptic number.

It is an amenable number.

202221221212 is a deficient number, since it is larger than the sum of its proper divisors (151665915916).

202221221212 is a wasteful number, since it uses less digits than its factorization.

202221221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50555305307 (or 50555305305 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202221221212 its reverse (212122122202), we get a palindrome (414343343414).

The spelling of 202221221212 in words is "two hundred two billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twelve".