200000100120 has 32 divisors (see below), whose sum is σ = 600000300720. Its totient is φ = 53333360000.

The previous prime is 200000100119. The next prime is 200000100173. The reversal of 200000100120 is 21001000002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 200000100099 and 200000100108.

It is a congruent number.

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, 833333631 + ... + 833333870.

Almost surely, 2^200000100120 is an apocalyptic number.

200000100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200000100120 is an abundant number, since it is smaller than the sum of its proper divisors (400000200600).

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

200000100120 is a wasteful number, since it uses less digits than its factorization.

200000100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666667515 (or 1666667511 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 200000100120 its reverse (21001000002), we get a palindrome (221001100122).

The spelling of 200000100120 in words is "two hundred billion, one hundred thousand, one hundred twenty".