314240441121221 has 2 divisors, whose sum is σ = 314240441121222. Its totient is φ = 314240441121220.

The previous prime is 314240441121199. The next prime is 314240441121241. The reversal of 314240441121221 is 122121144042413.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298732715260996 + 15507725860225 = 17283886^2 + 3937985^2 .

It is a cyclic number.

It is not a de Polignac number, because 314240441121221 - 2²² = 314240436926917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314240441121241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157120220560610 + 157120220560611.

It is an arithmetic number, because the mean of its divisors is an integer number (157120220560611).

Almost surely, 2^{314240441121221} is an apocalyptic number.

It is an amenable number.

314240441121221 is a deficient number, since it is larger than the sum of its proper divisors (1).

314240441121221 is an equidigital number, since it uses as much as digits as its factorization.

314240441121221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 314240441121221 its reverse (122121144042413), we get a palindrome (436361585163634).

The spelling of 314240441121221 in words is "three hundred fourteen trillion, two hundred forty billion, four hundred forty-one million, one hundred twenty-one thousand, two hundred twenty-one".