22203204121400 has 96 divisors (see below), whose sum is σ = 54391730016000. Its totient is φ = 8405746254720.

The previous prime is 22203204121387. The next prime is 22203204121429. The reversal of 22203204121400 is 412140230222.

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, 1136387 + ... + 6760013.

It is an arithmetic number, because the mean of its divisors is an integer number (566580521000).

Almost surely, 2^{22203204121400} is an apocalyptic number.

22203204121400 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 22203204121400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27195865008000).

22203204121400 is an abundant number, since it is smaller than the sum of its proper divisors (32188525894600).

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

22203204121400 is a wasteful number, since it uses less digits than its factorization.

22203204121400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5624701 (or 5624692 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22203204121400 its reverse (412140230222), we get a palindrome (22615344351622).

The spelling of 22203204121400 in words is "twenty-two trillion, two hundred three billion, two hundred four million, one hundred twenty-one thousand, four hundred".