10001220200 has 96 divisors (see below), whose sum is σ = 23875893720. Its totient is φ = 3893760000.

The previous prime is 10001220197. The next prime is 10001220223. The reversal of 10001220200 is 202210001.

It can be written as a sum of positive squares in 12 ways, for example, as 40780996 + 9960439204 = 6386^2 + 99802^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4271030 + ... + 4273370.

Almost surely, 2^10001220200 is an apocalyptic number.

10001220200 is a gapful number since it is divisible by the number (10) 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 10001220200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11937946860).

10001220200 is an abundant number, since it is smaller than the sum of its proper divisors (13874673520).

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

10001220200 is a wasteful number, since it uses less digits than its factorization.

10001220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919 (or 2910 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 10001220200 its reverse (202210001), we get a palindrome (10203430201).

The spelling of 10001220200 in words is "ten billion, one million, two hundred twenty thousand, two hundred".