20222400000 has 480 divisors, whose sum is σ = 73651286016. Its totient is φ = 4889600000.

The previous prime is 20222399971. The next prime is 20222400007. The reversal of 20222400000 is 422202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222400007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52799809 + ... + 52800191.

Almost surely, 2^20222400000 is an apocalyptic number.

20222400000 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 20222400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36825643008).

20222400000 is an abundant number, since it is smaller than the sum of its proper divisors (53428886016).

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

20222400000 is an frugal number, since it uses more digits than its factorization.

20222400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 20222400000 its reverse (422202), we get a palindrome (20222822202).

The spelling of 20222400000 in words is "twenty billion, two hundred twenty-two million, four hundred thousand".