2200121200 has 60 divisors (see below), whose sum is σ = 5337209488. Its totient is φ = 871488000.

The previous prime is 2200121191. The next prime is 2200121201. The reversal of 2200121200 is 21210022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200121201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14500 + ... + 67900.

Almost surely, 2^2200121200 is an apocalyptic number.

2200121200 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 2200121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2668604744).

2200121200 is an abundant number, since it is smaller than the sum of its proper divisors (3137088288).

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

2200121200 is a wasteful number, since it uses less digits than its factorization.

2200121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53522 (or 53511 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2200121200 is about 46905.4495767816. The cubic root of 2200121200 is about 1300.6153300012.

Adding to 2200121200 its reverse (21210022), we get a palindrome (2221331222).

The spelling of 2200121200 in words is "two billion, two hundred million, one hundred twenty-one thousand, two hundred".