202120101200 has 60 divisors (see below), whose sum is σ = 487625545920. Its totient is φ = 80509726080.

The previous prime is 202120101187. The next prime is 202120101203. The reversal of 202120101200 is 2101021202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202120101203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 961514 + ... + 1152713.

It is an arithmetic number, because the mean of its divisors is an integer number (8127092432).

Almost surely, 2^202120101200 is an apocalyptic number.

202120101200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202120101200 is an abundant number, since it is smaller than the sum of its proper divisors (285505444720).

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

202120101200 is a wasteful number, since it uses less digits than its factorization.

202120101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114484 (or 2114473 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202120101200 its reverse (2101021202), we get a palindrome (204221122402).

The spelling of 202120101200 in words is "two hundred two billion, one hundred twenty million, one hundred one thousand, two hundred".