22002107400 has 864 divisors, whose sum is σ = 95706374400. Its totient is φ = 4485196800.

The previous prime is 22002107399. The next prime is 22002107401. The reversal of 22002107400 is 470120022.

It is an interprime number because it is at equal distance from previous prime (22002107399) and next prime (22002107401).

It is a super-2 number, since 2×22002107400² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22002107401) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 35544291 + ... + 35544909.

Almost surely, 2^22002107400 is an apocalyptic number.

22002107400 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 22002107400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47853187200).

22002107400 is an abundant number, since it is smaller than the sum of its proper divisors (73704267000).

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

22002107400 is a wasteful number, since it uses less digits than its factorization.

22002107400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

Adding to 22002107400 its reverse (470120022), we get a palindrome (22472227422).

The spelling of 22002107400 in words is "twenty-two billion, two million, one hundred seven thousand, four hundred".