2200101000021 has 10 divisors (see below), whose sum is σ = 3286570629782. Its totient is φ = 1466733999960.

The previous prime is 2200101000001. The next prime is 2200101000029. The reversal of 2200101000021 is 1200001010022.

It can be written as a sum of positive squares in only one way, i.e., 1833817014225 + 366283985796 = 1354185^2 + 605214^2 .

It is not a de Polignac number, because 2200101000021 - 2⁵ = 2200100999989 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2200100999967 and 2200101000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200101000029) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13580870290 + ... + 13580870451.

Almost surely, 2^{2200101000021} is an apocalyptic number.

It is an amenable number.

2200101000021 is a deficient number, since it is larger than the sum of its proper divisors (1086469629761).

2200101000021 is an equidigital number, since it uses as much as digits as its factorization.

2200101000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27161740753 (or 27161740744 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2200101000021 its reverse (1200001010022), we get a palindrome (3400102010043).

The spelling of 2200101000021 in words is "two trillion, two hundred billion, one hundred one million, twenty-one", and thus it is an aban number.