2200100100221 has 4 divisors (see below), whose sum is σ = 2200191882972. Its totient is φ = 2200008317472.

The previous prime is 2200100100197. The next prime is 2200100100239. The reversal of 2200100100221 is 1220010010022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 802233705625 + 1397866394596 = 895675^2 + 1182314^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200100100221 - 2¹⁴ = 2200100083837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200100100281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45855410 + ... + 45903363.

It is an arithmetic number, because the mean of its divisors is an integer number (550047970743).

Almost surely, 2^{2200100100221} is an apocalyptic number.

It is an amenable number.

2200100100221 is a deficient number, since it is larger than the sum of its proper divisors (91782751).

2200100100221 is an equidigital number, since it uses as much as digits as its factorization.

2200100100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91782750.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2200100100221 its reverse (1220010010022), we get a palindrome (3420110110243).

The spelling of 2200100100221 in words is "two trillion, two hundred billion, one hundred million, one hundred thousand, two hundred twenty-one".