314213221 has 4 divisors (see below), whose sum is σ = 359100832. Its totient is φ = 269325612.

The previous prime is 314213219. The next prime is 314213267. The reversal of 314213221 is 122312413.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122312413 = 23 ⋅5317931.

It is a cyclic number.

It is not a de Polignac number, because 314213221 - 2¹ = 314213219 is a prime.

It is a super-4 number, since 4×314213221⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314213321) 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, 22443795 + ... + 22443808.

It is an arithmetic number, because the mean of its divisors is an integer number (89775208).

Almost surely, 2^314213221 is an apocalyptic number.

It is an amenable number.

314213221 is a deficient number, since it is larger than the sum of its proper divisors (44887611).

314213221 is an equidigital number, since it uses as much as digits as its factorization.

314213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44887610.

The product of its digits is 288, while the sum is 19.

The square root of 314213221 is about 17726.0605042406. The cubic root of 314213221 is about 679.8422507489.

Adding to 314213221 its reverse (122312413), we get a palindrome (436525634).

The spelling of 314213221 in words is "three hundred fourteen million, two hundred thirteen thousand, two hundred twenty-one".