22022002400 has 36 divisors (see below), whose sum is σ = 53761215312. Its totient is φ = 8808800640.

The previous prime is 22022002399. The next prime is 22022002403. The reversal of 22022002400 is 420022022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022002403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13762952 + ... + 13764551.

It is an arithmetic number, because the mean of its divisors is an integer number (1493367092).

Almost surely, 2^22022002400 is an apocalyptic number.

22022002400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022002400 is an abundant number, since it is smaller than the sum of its proper divisors (31739212912).

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

22022002400 is a wasteful number, since it uses less digits than its factorization.

22022002400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27527523 (or 27527510 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 22022002400 its reverse (420022022), we get a palindrome (22442024422).

The spelling of 22022002400 in words is "twenty-two billion, twenty-two million, two thousand, four hundred".