2201221100104 has 32 divisors (see below), whose sum is σ = 4490595801720. Its totient is φ = 1005474502656.

The previous prime is 2201221100069. The next prime is 2201221100149. The reversal of 2201221100104 is 4010011221022.

It can be written as a sum of positive squares in 4 ways, for example, as 2006466584004 + 194754516100 = 1416498^2 + 441310^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109090879 + ... + 109111054.

Almost surely, 2^{2201221100104} is an apocalyptic number.

It is an amenable number.

2201221100104 is an abundant number, since it is smaller than the sum of its proper divisors (2289374701616).

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

2201221100104 is a wasteful number, since it uses less digits than its factorization.

2201221100104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218202049 (or 218202045 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2201221100104 its reverse (4010011221022), we get a palindrome (6211232321126).

The spelling of 2201221100104 in words is "two trillion, two hundred one billion, two hundred twenty-one million, one hundred thousand, one hundred four".