202102121200 has 60 divisors (see below), whose sum is σ = 554914689040. Its totient is φ = 69292154880.

The previous prime is 202102121131. The next prime is 202102121203. The reversal of 202102121200 is 2121201202.

It is a happy number.

202102121200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102121203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36086865 + ... + 36092464.

Almost surely, 2^202102121200 is an apocalyptic number.

202102121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202102121200 is an abundant number, since it is smaller than the sum of its proper divisors (352812567840).

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

202102121200 is a wasteful number, since it uses less digits than its factorization.

202102121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72179354 (or 72179343 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202102121200 its reverse (2121201202), we get a palindrome (204223322402).

The spelling of 202102121200 in words is "two hundred two billion, one hundred two million, one hundred twenty-one thousand, two hundred".