20402200200 has 96 divisors (see below), whose sum is σ = 63336124800. Its totient is φ = 5432904960.

The previous prime is 20402200193. The next prime is 20402200207. The reversal of 20402200200 is 200220402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20402200193) and next prime (20402200207).

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 not an unprimeable number, because it can be changed into a prime (20402200207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 407754 + ... + 455046.

It is an arithmetic number, because the mean of its divisors is an integer number (659751300).

Almost surely, 2^20402200200 is an apocalyptic number.

20402200200 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 20402200200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31668062400).

20402200200 is an abundant number, since it is smaller than the sum of its proper divisors (42933924600).

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

20402200200 is a wasteful number, since it uses less digits than its factorization.

20402200200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48031 (or 48022 counting only the distinct ones).

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

Adding to 20402200200 its reverse (200220402), we get a palindrome (20602420602).

The spelling of 20402200200 in words is "twenty billion, four hundred two million, two hundred thousand, two hundred".