110666017221 has 4 divisors (see below), whose sum is σ = 147554689632. Its totient is φ = 73777344812.

The previous prime is 110666017129. The next prime is 110666017249. The reversal of 110666017221 is 122710666011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 110666017221 - 2⁷ = 110666017093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110666017261) 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, 18444336201 + ... + 18444336206.

It is an arithmetic number, because the mean of its divisors is an integer number (36888672408).

Almost surely, 2^110666017221 is an apocalyptic number.

It is an amenable number.

110666017221 is a deficient number, since it is larger than the sum of its proper divisors (36888672411).

110666017221 is an equidigital number, since it uses as much as digits as its factorization.

110666017221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36888672410.

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 110666017221 in words is "one hundred ten billion, six hundred sixty-six million, seventeen thousand, two hundred twenty-one".