202001232120 has 128 divisors (see below), whose sum is σ = 637562802240. Its totient is φ = 51132764160.

The previous prime is 202001232101. The next prime is 202001232151. The reversal of 202001232120 is 21232100202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202001232120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372787 + ... + 736866.

Almost surely, 2^202001232120 is an apocalyptic number.

202001232120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202001232120 is an abundant number, since it is smaller than the sum of its proper divisors (435561570120).

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

202001232120 is a wasteful number, since it uses less digits than its factorization.

202001232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109745 (or 1109741 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 202001232120 its reverse (21232100202), we get a palindrome (223233332322).

The spelling of 202001232120 in words is "two hundred two billion, one million, two hundred thirty-two thousand, one hundred twenty".