20012002200 has 576 divisors, whose sum is σ = 74227570560. Its totient is φ = 4811304960.

The previous prime is 20012002181. The next prime is 20012002249. The reversal of 20012002200 is 220021002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 88158487 + ... + 88158713.

It is an arithmetic number, because the mean of its divisors is an integer number (128867310).

Almost surely, 2^20012002200 is an apocalyptic number.

20012002200 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 20012002200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37113785280).

20012002200 is an abundant number, since it is smaller than the sum of its proper divisors (54215568360).

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

20012002200 is a wasteful number, since it uses less digits than its factorization.

20012002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20012002200 its reverse (220021002), we get a palindrome (20232023202).

The spelling of 20012002200 in words is "twenty billion, twelve million, two thousand, two hundred".