221475714 has 16 divisors (see below), whose sum is σ = 453253152. Its totient is φ = 72108288.

The previous prime is 221475713. The next prime is 221475733. The reversal of 221475714 is 417574122.

221475714 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221475713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428959 + ... + 429474.

It is an arithmetic number, because the mean of its divisors is an integer number (28328322).

Almost surely, 2^221475714 is an apocalyptic number.

221475714 is an abundant number, since it is smaller than the sum of its proper divisors (231777438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221475714 is a wasteful number, since it uses less digits than its factorization.

221475714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858481.

The product of its digits is 15680, while the sum is 33.

The square root of 221475714 is about 14882.0601396446. The cubic root of 221475714 is about 605.0278556489.

The spelling of 221475714 in words is "two hundred twenty-one million, four hundred seventy-five thousand, seven hundred fourteen".