221064063071 has 2 divisors, whose sum is σ = 221064063072. Its totient is φ = 221064063070.

The previous prime is 221064063061. The next prime is 221064063109. The reversal of 221064063071 is 170360460122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221064063071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221064063061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110532031535 + 110532031536.

It is an arithmetic number, because the mean of its divisors is an integer number (110532031536).

Almost surely, 2^221064063071 is an apocalyptic number.

221064063071 is a deficient number, since it is larger than the sum of its proper divisors (1).

221064063071 is an equidigital number, since it uses as much as digits as its factorization.

221064063071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 221064063071 in words is "two hundred twenty-one billion, sixty-four million, sixty-three thousand, seventy-one".