221275675 has 12 divisors (see below), whose sum is σ = 283233856. Its totient is φ = 171309600.

The previous prime is 221275669. The next prime is 221275693. The reversal of 221275675 is 576572122.

It is not a de Polignac number, because 221275675 - 2³ = 221275667 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141984 + ... + 143533.

Almost surely, 2^221275675 is an apocalyptic number.

221275675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

221275675 is a deficient number, since it is larger than the sum of its proper divisors (61958181).

221275675 is a wasteful number, since it uses less digits than its factorization.

221275675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285558 (or 285553 counting only the distinct ones).

The product of its digits is 58800, while the sum is 37.

The square root of 221275675 is about 14875.3378112902. The cubic root of 221275675 is about 604.8456451158.

The spelling of 221275675 in words is "two hundred twenty-one million, two hundred seventy-five thousand, six hundred seventy-five".