202121200222212 has 12 divisors (see below), whose sum is σ = 471616133851856. Its totient is φ = 67373733407400.

The previous prime is 202121200222177. The next prime is 202121200222267. The reversal of 202121200222212 is 212222002121202.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8421716675914 + ... + 8421716675937.

Almost surely, 2^{202121200222212} is an apocalyptic number.

It is an amenable number.

202121200222212 is an abundant number, since it is smaller than the sum of its proper divisors (269494933629644).

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

202121200222212 is a wasteful number, since it uses less digits than its factorization.

202121200222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16843433351858 (or 16843433351856 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 202121200222212 its reverse (212222002121202), we get a palindrome (414343202343414).

The spelling of 202121200222212 in words is "two hundred two trillion, one hundred twenty-one billion, two hundred million, two hundred twenty-two thousand, two hundred twelve".