221411707025297 has 2 divisors, whose sum is σ = 221411707025298. Its totient is φ = 221411707025296.

The previous prime is 221411707025167. The next prime is 221411707025357. The reversal of 221411707025297 is 792520707114122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166869582675601 + 54542124349696 = 12917801^2 + 7385264^2 .

It is a cyclic number.

It is not a de Polignac number, because 221411707025297 - 2¹⁰ = 221411707024273 is a prime.

It is not a weakly prime, because it can be changed into another prime (221411700025297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110705853512648 + 110705853512649.

It is an arithmetic number, because the mean of its divisors is an integer number (110705853512649).

Almost surely, 2^{221411707025297} is an apocalyptic number.

It is an amenable number.

221411707025297 is a deficient number, since it is larger than the sum of its proper divisors (1).

221411707025297 is an equidigital number, since it uses as much as digits as its factorization.

221411707025297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 50.

The spelling of 221411707025297 in words is "two hundred twenty-one trillion, four hundred eleven billion, seven hundred seven million, twenty-five thousand, two hundred ninety-seven".