221432314 has 16 divisors (see below), whose sum is σ = 337151808. Its totient is φ = 109060672.

The previous prime is 221432291. The next prime is 221432317. The reversal of 221432314 is 413234122.

It is not an unprimeable number, because it can be changed into a prime (221432317) 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, 34809 + ... + 40675.

It is an arithmetic number, because the mean of its divisors is an integer number (21071988).

Almost surely, 2^221432314 is an apocalyptic number.

221432314 is a deficient number, since it is larger than the sum of its proper divisors (115719494).

221432314 is a wasteful number, since it uses less digits than its factorization.

221432314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6149.

The product of its digits is 1152, while the sum is 22.

The square root of 221432314 is about 14880.6019367497. The cubic root of 221432314 is about 604.9883329945.

Adding to 221432314 its reverse (413234122), we get a palindrome (634666436).

The spelling of 221432314 in words is "two hundred twenty-one million, four hundred thirty-two thousand, three hundred fourteen".