22022246400 has 1248 divisors, whose sum is σ = 97505664000. Its totient is φ = 4335206400.

The previous prime is 22022246371. The next prime is 22022246429. The reversal of 22022246400 is 464222022.

It is an interprime number because it is at equal distance from previous prime (22022246371) and next prime (22022246429).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1159065591 + ... + 1159065609.

Almost surely, 2^22022246400 is an apocalyptic number.

22022246400 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 22022246400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48752832000).

22022246400 is an abundant number, since it is smaller than the sum of its proper divisors (75483417600).

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

22022246400 is a wasteful number, since it uses less digits than its factorization.

22022246400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 22022246400 its reverse (464222022), we get a palindrome (22486468422).

The spelling of 22022246400 in words is "twenty-two billion, twenty-two million, two hundred forty-six thousand, four hundred".