13220200400 has 60 divisors (see below), whose sum is σ = 34648954944. Its totient is φ = 4807344000.

The previous prime is 13220200397. The next prime is 13220200423. The reversal of 13220200400 is 400202231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1497896 + ... + 1506695.

Almost surely, 2^13220200400 is an apocalyptic number.

13220200400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220200400 is an abundant number, since it is smaller than the sum of its proper divisors (21428754544).

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

13220200400 is a wasteful number, since it uses less digits than its factorization.

13220200400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004620 (or 3004609 counting only the distinct ones).

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

Adding to 13220200400 its reverse (400202231), we get a palindrome (13620402631).

The spelling of 13220200400 in words is "thirteen billion, two hundred twenty million, two hundred thousand, four hundred".