12223202400 has 144 divisors (see below), whose sum is σ = 44207326800. Its totient is φ = 3259514880.

The previous prime is 12223202323. The next prime is 12223202423. The reversal of 12223202400 is 420232221.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×12223202400² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261345 + ... + 304544.

It is an arithmetic number, because the mean of its divisors is an integer number (306995325).

Almost surely, 2^12223202400 is an apocalyptic number.

12223202400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12223202400 is an abundant number, since it is smaller than the sum of its proper divisors (31984124400).

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

12223202400 is a wasteful number, since it uses less digits than its factorization.

12223202400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565918 (or 565899 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 12223202400 its reverse (420232221), we get a palindrome (12643434621).

The spelling of 12223202400 in words is "twelve billion, two hundred twenty-three million, two hundred two thousand, four hundred".