202122100221200 has 120 divisors (see below), whose sum is σ = 515679661428000. Its totient is φ = 75915817850880.

The previous prime is 202122100221079. The next prime is 202122100221211. The reversal of 202122100221200 is 2122001221202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116818250 + ... + 118535849.

It is an arithmetic number, because the mean of its divisors is an integer number (4297330511900).

Almost surely, 2^{202122100221200} is an apocalyptic number.

202122100221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202122100221200 is an abundant number, since it is smaller than the sum of its proper divisors (313557561206800).

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

202122100221200 is a wasteful number, since it uses less digits than its factorization.

202122100221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235354249 (or 235354238 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202122100221200 its reverse (2122001221202), we get a palindrome (204244101442402).

The spelling of 202122100221200 in words is "two hundred two trillion, one hundred twenty-two billion, one hundred million, two hundred twenty-one thousand, two hundred".