22130404400 has 240 divisors, whose sum is σ = 59370887520. Its totient is φ = 7875379200.

The previous prime is 22130404399. The next prime is 22130404421. The reversal of 22130404400 is 440403122.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 16259720 + ... + 16261080.

It is an arithmetic number, because the mean of its divisors is an integer number (247378698).

Almost surely, 2^22130404400 is an apocalyptic number.

22130404400 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 22130404400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29685443760).

22130404400 is an abundant number, since it is smaller than the sum of its proper divisors (37240483120).

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

22130404400 is a wasteful number, since it uses less digits than its factorization.

22130404400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22130404400 its reverse (440403122), we get a palindrome (22570807522).

The spelling of 22130404400 in words is "twenty-two billion, one hundred thirty million, four hundred four thousand, four hundred".