200122100120 has 64 divisors (see below), whose sum is σ = 455882001120. Its totient is φ = 79052765184.

The previous prime is 200122100099. The next prime is 200122100377. The reversal of 200122100120 is 21001221002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9394922 + ... + 9416198.

Almost surely, 2^200122100120 is an apocalyptic number.

200122100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200122100120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227941000560).

200122100120 is an abundant number, since it is smaller than the sum of its proper divisors (255759901000).

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

200122100120 is a wasteful number, since it uses less digits than its factorization.

200122100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24204 (or 24200 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200122100120 its reverse (21001221002), we get a palindrome (221123321122).

The spelling of 200122100120 in words is "two hundred billion, one hundred twenty-two million, one hundred thousand, one hundred twenty".