108949221 has 12 divisors (see below), whose sum is σ = 162448000. Its totient is φ = 70289640.

The previous prime is 108949213. The next prime is 108949237. The reversal of 108949221 is 122949801.

It is not a de Polignac number, because 108949221 - 2³ = 108949213 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 (108949241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194971 + ... + 195528.

Almost surely, 2^108949221 is an apocalyptic number.

It is an amenable number.

108949221 is a deficient number, since it is larger than the sum of its proper divisors (53498779).

108949221 is a wasteful number, since it uses less digits than its factorization.

108949221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390536 (or 390533 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 108949221 is about 10437.8743525682. The cubic root of 108949221 is about 477.6114279944.

The spelling of 108949221 in words is "one hundred eight million, nine hundred forty-nine thousand, two hundred twenty-one".