221411707025357 has 2 divisors, whose sum is σ = 221411707025358. Its totient is φ = 221411707025356.

The previous prime is 221411707025297. The next prime is 221411707025359. The reversal of 221411707025357 is 753520707114122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155399884470601 + 66011822554756 = 12465949^2 + 8124766^2 .

It is a cyclic number.

It is not a de Polignac number, because 221411707025357 - 2⁸ = 221411707025101 is a prime.

Together with 221411707025359, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221411707025359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110705853512678 + 110705853512679.

It is an arithmetic number, because the mean of its divisors is an integer number (110705853512679).

Almost surely, 2^{221411707025357} is an apocalyptic number.

It is an amenable number.

221411707025357 is a deficient number, since it is larger than the sum of its proper divisors (1).

221411707025357 is an equidigital number, since it uses as much as digits as its factorization.

221411707025357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 221411707025357 in words is "two hundred twenty-one trillion, four hundred eleven billion, seven hundred seven million, twenty-five thousand, three hundred fifty-seven".