2122200120 has 64 divisors (see below), whose sum is σ = 6538684320. Its totient is φ = 550623744.

The previous prime is 2122200109. The next prime is 2122200121. The reversal of 2122200120 is 210022212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2122200096 and 2122200105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122200121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234547 + ... + 243426.

Almost surely, 2^2122200120 is an apocalyptic number.

2122200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122200120 is an abundant number, since it is smaller than the sum of its proper divisors (4416484200).

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

2122200120 is a wasteful number, since it uses less digits than its factorization.

2122200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478024 (or 478020 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2122200120 is about 46067.3433138921. The cubic root of 2122200120 is about 1285.0758977513.

Adding to 2122200120 its reverse (210022212), we get a palindrome (2332222332).

The spelling of 2122200120 in words is "two billion, one hundred twenty-two million, two hundred thousand, one hundred twenty".