352821120212381 has 2 divisors, whose sum is σ = 352821120212382. Its totient is φ = 352821120212380.

The previous prime is 352821120212179. The next prime is 352821120212399. The reversal of 352821120212381 is 183212021128253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352805221272100 + 15898940281 = 18783110^2 + 126091^2 .

It is a cyclic number.

It is not a de Polignac number, because 352821120212381 - 2²⁶ = 352821053103517 is a prime.

It is a super-2 number, since 2×352821120212381² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (352821120217381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176410560106190 + 176410560106191.

It is an arithmetic number, because the mean of its divisors is an integer number (176410560106191).

Almost surely, 2^{352821120212381} is an apocalyptic number.

It is an amenable number.

352821120212381 is a deficient number, since it is larger than the sum of its proper divisors (1).

352821120212381 is an equidigital number, since it uses as much as digits as its factorization.

352821120212381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 352821120212381 in words is "three hundred fifty-two trillion, eight hundred twenty-one billion, one hundred twenty million, two hundred twelve thousand, three hundred eighty-one".