2203120400 has 240 divisors, whose sum is σ = 5992949760. Its totient is φ = 772761600.

The previous prime is 2203120399. The next prime is 2203120411. The reversal of 2203120400 is 40213022.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12734714 + ... + 12734886.

It is an arithmetic number, because the mean of its divisors is an integer number (24970624).

Almost surely, 2^2203120400 is an apocalyptic number.

2203120400 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 2203120400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2996474880).

2203120400 is an abundant number, since it is smaller than the sum of its proper divisors (3789829360).

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

2203120400 is a wasteful number, since it uses less digits than its factorization.

2203120400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2203120400 is about 46937.4093873959. The cubic root of 2203120400 is about 1301.2060602325.

Adding to 2203120400 its reverse (40213022), we get a palindrome (2243333422).

The spelling of 2203120400 in words is "two billion, two hundred three million, one hundred twenty thousand, four hundred".