110001100221 has 32 divisors (see below), whose sum is σ = 166153835520. Its totient is φ = 71900816832.

The previous prime is 110001100199. The next prime is 110001100247. The reversal of 110001100221 is 122001100011.

It is a happy number.

It is not a de Polignac number, because 110001100221 - 2²² = 109996905917 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001100271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2110740 + ... + 2162226.

It is an arithmetic number, because the mean of its divisors is an integer number (5192307360).

Almost surely, 2^110001100221 is an apocalyptic number.

It is an amenable number.

110001100221 is a deficient number, since it is larger than the sum of its proper divisors (56152735299).

110001100221 is a wasteful number, since it uses less digits than its factorization.

110001100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53042 (or 53036 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 110001100221 its reverse (122001100011), we get a palindrome (232002200232).

The spelling of 110001100221 in words is "one hundred ten billion, one million, one hundred thousand, two hundred twenty-one".