200120122220 has 24 divisors (see below), whose sum is σ = 422929029264. Its totient is φ = 79538187456.

The previous prime is 200120122219. The next prime is 200120122243. The reversal of 200120122220 is 22221021002.

It is a junction number, because it is equal to n+sod(n) for n = 200120122195 and 200120122204.

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, 31863122 + ... + 31869401.

It is an arithmetic number, because the mean of its divisors is an integer number (17622042886).

Almost surely, 2^200120122220 is an apocalyptic number.

200120122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200120122220 is an abundant number, since it is smaller than the sum of its proper divisors (222808907044).

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

200120122220 is a wasteful number, since it uses less digits than its factorization.

200120122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63732689 (or 63732687 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 200120122220 its reverse (22221021002), we get a palindrome (222341143222).

The spelling of 200120122220 in words is "two hundred billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twenty".