210120022200 has 96 divisors (see below), whose sum is σ = 710587733760. Its totient is φ = 50938185600.

The previous prime is 210120022171. The next prime is 210120022201. The reversal of 210120022200 is 2220021012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120022201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15911584 + ... + 15924783.

It is an arithmetic number, because the mean of its divisors is an integer number (7401955560).

Almost surely, 2^210120022200 is an apocalyptic number.

210120022200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210120022200 is an abundant number, since it is smaller than the sum of its proper divisors (500467711560).

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

210120022200 is a wasteful number, since it uses less digits than its factorization.

210120022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31836397 (or 31836388 counting only the distinct ones).

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

Adding to 210120022200 its reverse (2220021012), we get a palindrome (212340043212).

The spelling of 210120022200 in words is "two hundred ten billion, one hundred twenty million, twenty-two thousand, two hundred".