221314032 has 50 divisors (see below), whose sum is σ = 640550768. Its totient is φ = 73770912.

The previous prime is 221314019. The next prime is 221314097. The reversal of 221314032 is 230413122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221313996 and 221314014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 84088 + ... + 86679.

Almost surely, 2^221314032 is an apocalyptic number.

It is an amenable number.

221314032 is an abundant number, since it is smaller than the sum of its proper divisors (419236736).

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

221314032 is a wasteful number, since it uses less digits than its factorization.

221314032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170787 (or 170772 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 221314032 is about 14876.6270370672. The cubic root of 221314032 is about 604.8805920570.

Adding to 221314032 its reverse (230413122), we get a palindrome (451727154).

The spelling of 221314032 in words is "two hundred twenty-one million, three hundred fourteen thousand, thirty-two".