214352221 has 4 divisors (see below), whose sum is σ = 214441372. Its totient is φ = 214263072.

The previous prime is 214352219. The next prime is 214352227. The reversal of 214352221 is 122253412.

It is a happy number.

214352221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 148108900 + 66243321 = 12170^2 + 8139^2 .

It is a cyclic number.

It is not a de Polignac number, because 214352221 - 2¹ = 214352219 is a prime.

It is a super-4 number, since 4×214352221⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214352192 and 214352201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214352227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40866 + ... + 45811.

It is an arithmetic number, because the mean of its divisors is an integer number (53610343).

Almost surely, 2^214352221 is an apocalyptic number.

It is an amenable number.

214352221 is a deficient number, since it is larger than the sum of its proper divisors (89151).

214352221 is an equidigital number, since it uses as much as digits as its factorization.

214352221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89150.

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

The square root of 214352221 is about 14640.7725547527. The cubic root of 214352221 is about 598.4703824678.

The spelling of 214352221 in words is "two hundred fourteen million, three hundred fifty-two thousand, two hundred twenty-one".