202121222012200 has 48 divisors (see below), whose sum is σ = 470033187273180. Its totient is φ = 80831052917760.

The previous prime is 202121222012191. The next prime is 202121222012293. The reversal of 202121222012200 is 2210222121202.

202121222012200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 8772697591876 + 193348524420324 = 2961874^2 + 13904982^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108044577 + ... + 109899376.

Almost surely, 2^{202121222012200} is an apocalyptic number.

202121222012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202121222012200 is an abundant number, since it is smaller than the sum of its proper divisors (267911965260980).

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

202121222012200 is a wasteful number, since it uses less digits than its factorization.

202121222012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217948606 (or 217948597 counting only the distinct ones).

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

Adding to 202121222012200 its reverse (2210222121202), we get a palindrome (204331444133402).

The spelling of 202121222012200 in words is "two hundred two trillion, one hundred twenty-one billion, two hundred twenty-two million, twelve thousand, two hundred".