314421221 has 4 divisors (see below), whose sum is σ = 315213612. Its totient is φ = 313628832.

The previous prime is 314421193. The next prime is 314421229. The reversal of 314421221 is 122124413.

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 171976996 + 142444225 = 13114^2 + 11935^2 .

It is a cyclic number.

It is not a de Polignac number, because 314421221 - 2²⁶ = 247312357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 314421193 and 314421202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314421229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395600 + ... + 396393.

It is an arithmetic number, because the mean of its divisors is an integer number (78803403).

Almost surely, 2^314421221 is an apocalyptic number.

It is an amenable number.

314421221 is a deficient number, since it is larger than the sum of its proper divisors (792391).

314421221 is an equidigital number, since it uses as much as digits as its factorization.

314421221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792390.

The product of its digits is 384, while the sum is 20.

The square root of 314421221 is about 17731.9266014723. The cubic root of 314421221 is about 679.9922295825.

Adding to 314421221 its reverse (122124413), we get a palindrome (436545634).

The spelling of 314421221 in words is "three hundred fourteen million, four hundred twenty-one thousand, two hundred twenty-one".