314215221 has 4 divisors (see below), whose sum is σ = 418953632. Its totient is φ = 209476812.

The previous prime is 314215219. The next prime is 314215241. The reversal of 314215221 is 122512413.

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.

It is not a de Polignac number, because 314215221 - 2¹ = 314215219 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 (314215201) 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, 52369201 + ... + 52369206.

It is an arithmetic number, because the mean of its divisors is an integer number (104738408).

Almost surely, 2^314215221 is an apocalyptic number.

It is an amenable number.

314215221 is a deficient number, since it is larger than the sum of its proper divisors (104738411).

314215221 is a wasteful number, since it uses less digits than its factorization.

314215221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104738410.

The product of its digits is 480, while the sum is 21.

The square root of 314215221 is about 17726.1169182650. The cubic root of 314215221 is about 679.8436931682.

Adding to 314215221 its reverse (122512413), we get a palindrome (436727634).

The spelling of 314215221 in words is "three hundred fourteen million, two hundred fifteen thousand, two hundred twenty-one".