221325214 has 24 divisors (see below), whose sum is σ = 373416120. Its totient is φ = 98258160.

The previous prime is 221325199. The next prime is 221325217. The reversal of 221325214 is 412523122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221325217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229 + ... + 21040.

It is an arithmetic number, because the mean of its divisors is an integer number (15559005).

Almost surely, 2^221325214 is an apocalyptic number.

221325214 is a deficient number, since it is larger than the sum of its proper divisors (152090906).

221325214 is a wasteful number, since it uses less digits than its factorization.

221325214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21336 (or 21325 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 221325214 is about 14877.0028567585. The cubic root of 221325214 is about 604.8907791816.

Adding to 221325214 its reverse (412523122), we get a palindrome (633848336).

The spelling of 221325214 in words is "two hundred twenty-one million, three hundred twenty-five thousand, two hundred fourteen".