221101100159 has 2 divisors, whose sum is σ = 221101100160. Its totient is φ = 221101100158.

The previous prime is 221101100117. The next prime is 221101100179. The reversal of 221101100159 is 951001101122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221101100159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221101100179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550550079 + 110550550080.

It is an arithmetic number, because the mean of its divisors is an integer number (110550550080).

Almost surely, 2^221101100159 is an apocalyptic number.

221101100159 is a deficient number, since it is larger than the sum of its proper divisors (1).

221101100159 is an equidigital number, since it uses as much as digits as its factorization.

221101100159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 23.

The spelling of 221101100159 in words is "two hundred twenty-one billion, one hundred one million, one hundred thousand, one hundred fifty-nine".