214353221 has 4 divisors (see below), whose sum is σ = 226962252. Its totient is φ = 201744192.

The previous prime is 214353211. The next prime is 214353257. The reversal of 214353221 is 122353412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169650625 + 44702596 = 13025^2 + 6686^2 .

It is a cyclic number.

It is not a de Polignac number, because 214353221 - 2⁶ = 214353157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214353211) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6304490 + ... + 6304523.

It is an arithmetic number, because the mean of its divisors is an integer number (56740563).

Almost surely, 2^214353221 is an apocalyptic number.

It is an amenable number.

214353221 is a deficient number, since it is larger than the sum of its proper divisors (12609031).

214353221 is a wasteful number, since it uses less digits than its factorization.

214353221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12609030.

The product of its digits is 1440, while the sum is 23.

The square root of 214353221 is about 14640.8067059162. The cubic root of 214353221 is about 598.4713131315.

The spelling of 214353221 in words is "two hundred fourteen million, three hundred fifty-three thousand, two hundred twenty-one".