3900110221 has 16 divisors (see below), whose sum is σ = 4712387200. Its totient is φ = 3153152448.

The previous prime is 3900110197. The next prime is 3900110237. The reversal of 3900110221 is 1220110093.

It is not a de Polignac number, because 3900110221 - 2¹⁵ = 3900077453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3900110251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33570 + ... + 94483.

It is an arithmetic number, because the mean of its divisors is an integer number (294524200).

Almost surely, 2^3900110221 is an apocalyptic number.

It is an amenable number.

3900110221 is a deficient number, since it is larger than the sum of its proper divisors (812276979).

3900110221 is a wasteful number, since it uses less digits than its factorization.

3900110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128308.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 3900110221 is about 62450.8624520110. The cubic root of 3900110221 is about 1574.0757450873.

The spelling of 3900110221 in words is "three billion, nine hundred million, one hundred ten thousand, two hundred twenty-one".