352146641221 has 2 divisors, whose sum is σ = 352146641222. Its totient is φ = 352146641220.

The previous prime is 352146641207. The next prime is 352146641227. The reversal of 352146641221 is 122146641253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248791464100 + 103355177121 = 498790^2 + 321489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-352146641221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (352146641227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176073320610 + 176073320611.

It is an arithmetic number, because the mean of its divisors is an integer number (176073320611).

Almost surely, 2^352146641221 is an apocalyptic number.

It is an amenable number.

352146641221 is a deficient number, since it is larger than the sum of its proper divisors (1).

352146641221 is an equidigital number, since it uses as much as digits as its factorization.

352146641221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The spelling of 352146641221 in words is "three hundred fifty-two billion, one hundred forty-six million, six hundred forty-one thousand, two hundred twenty-one".