221341303143197 has 2 divisors, whose sum is σ = 221341303143198. Its totient is φ = 221341303143196.

The previous prime is 221341303143151. The next prime is 221341303143253. The reversal of 221341303143197 is 791341303143122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207661616799961 + 13679686343236 = 14410469^2 + 3698606^2 .

It is a cyclic number.

It is not a de Polignac number, because 221341303143197 - 2¹⁰ = 221341303142173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221341303143127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110670651571598 + 110670651571599.

It is an arithmetic number, because the mean of its divisors is an integer number (110670651571599).

Almost surely, 2^{221341303143197} is an apocalyptic number.

It is an amenable number.

221341303143197 is a deficient number, since it is larger than the sum of its proper divisors (1).

221341303143197 is an equidigital number, since it uses as much as digits as its factorization.

221341303143197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 221341303143197 in words is "two hundred twenty-one trillion, three hundred forty-one billion, three hundred three million, one hundred forty-three thousand, one hundred ninety-seven".