379291039112221 has 2 divisors, whose sum is σ = 379291039112222. Its totient is φ = 379291039112220.

The previous prime is 379291039112191. The next prime is 379291039112281. The reversal of 379291039112221 is 122211930192973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360656181902500 + 18634857209721 = 18990950^2 + 4316811^2 .

It is an emirp because it is prime and its reverse (122211930192973) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 379291039112221 - 2⁹ = 379291039111709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (379291039112281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189645519556110 + 189645519556111.

It is an arithmetic number, because the mean of its divisors is an integer number (189645519556111).

Almost surely, 2^{379291039112221} is an apocalyptic number.

It is an amenable number.

379291039112221 is a deficient number, since it is larger than the sum of its proper divisors (1).

379291039112221 is an equidigital number, since it uses as much as digits as its factorization.

379291039112221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 52.

The spelling of 379291039112221 in words is "three hundred seventy-nine trillion, two hundred ninety-one billion, thirty-nine million, one hundred twelve thousand, two hundred twenty-one".