22073421400 has 48 divisors (see below), whose sum is σ = 51712527240. Its totient is φ = 8761958400.

The previous prime is 22073421373. The next prime is 22073421413. The reversal of 22073421400 is 412437022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 395049 + ... + 447448.

Almost surely, 2^22073421400 is an apocalyptic number.

22073421400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22073421400 is an abundant number, since it is smaller than the sum of its proper divisors (29639105840).

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

22073421400 is a wasteful number, since it uses less digits than its factorization.

22073421400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842644 (or 842635 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 22073421400 its reverse (412437022), we get a palindrome (22485858422).

The spelling of 22073421400 in words is "twenty-two billion, seventy-three million, four hundred twenty-one thousand, four hundred".