201210220021100 has 72 divisors (see below), whose sum is σ = 455621781235488. Its totient is φ = 76982776358400.

The previous prime is 201210220021081. The next prime is 201210220021117. The reversal of 201210220021100 is 1120022012102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88804310 + ... + 91041890.

Almost surely, 2^{201210220021100} is an apocalyptic number.

201210220021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201210220021100 is an abundant number, since it is smaller than the sum of its proper divisors (254411561214388).

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

201210220021100 is a wasteful number, since it uses less digits than its factorization.

201210220021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276715 (or 2276708 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201210220021100 its reverse (1120022012102), we get a palindrome (202330242033202).

The spelling of 201210220021100 in words is "two hundred one trillion, two hundred ten billion, two hundred twenty million, twenty-one thousand, one hundred".