108571221 has 48 divisors (see below), whose sum is σ = 176484672. Its totient is φ = 63763200.

The previous prime is 108571217. The next prime is 108571271. The reversal of 108571221 is 122175801.

It is not a de Polignac number, because 108571221 - 2² = 108571217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108571271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 599751 + ... + 599931.

It is an arithmetic number, because the mean of its divisors is an integer number (3676764).

Almost surely, 2^108571221 is an apocalyptic number.

108571221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

108571221 is a deficient number, since it is larger than the sum of its proper divisors (67913451).

108571221 is a wasteful number, since it uses less digits than its factorization.

108571221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 108571221 is about 10419.7514845605. The cubic root of 108571221 is about 477.0584293495.

The spelling of 108571221 in words is "one hundred eight million, five hundred seventy-one thousand, two hundred twenty-one".