200000202120 has 96 divisors (see below), whose sum is σ = 650479840920. Its totient is φ = 53294069760.

The previous prime is 200000202119. The next prime is 200000202131. The reversal of 200000202120 is 21202000002.

It can be written as a sum of positive squares in 4 ways, for example, as 173144203236 + 26855998884 = 416106^2 + 163878^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

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 23 ways as a sum of consecutive naturals, for example, 285862 + ... + 694058.

Almost surely, 2^200000202120 is an apocalyptic number.

200000202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200000202120 is an abundant number, since it is smaller than the sum of its proper divisors (450479638800).

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

200000202120 is a wasteful number, since it uses less digits than its factorization.

200000202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409575 (or 409568 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 200000202120 its reverse (21202000002), we get a palindrome (221202202122).

The spelling of 200000202120 in words is "two hundred billion, two hundred two thousand, one hundred twenty".