200210002120 has 32 divisors (see below), whose sum is σ = 450624497400. Its totient is φ = 80056979968.

The previous prime is 200210002087. The next prime is 200210002189. The reversal of 200210002120 is 21200012002.

It can be written as a sum of positive squares in 4 ways, for example, as 143175964996 + 57034037124 = 378386^2 + 238818^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 200210002097 and 200210002106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724159 + ... + 961678.

Almost surely, 2^200210002120 is an apocalyptic number.

200210002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200210002120 is an abundant number, since it is smaller than the sum of its proper divisors (250414495280).

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

200210002120 is a wasteful number, since it uses less digits than its factorization.

200210002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688817 (or 1688813 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 200210002120 its reverse (21200012002), we get a palindrome (221410014122).

The spelling of 200210002120 in words is "two hundred billion, two hundred ten million, two thousand, one hundred twenty".