221301231163 has 2 divisors, whose sum is σ = 221301231164. Its totient is φ = 221301231162.

The previous prime is 221301231101. The next prime is 221301231181. The reversal of 221301231163 is 361132103122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221301231163 - 2²⁵ = 221267676731 is a prime.

It is not a weakly prime, because it can be changed into another prime (221301231763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110650615581 + 110650615582.

It is an arithmetic number, because the mean of its divisors is an integer number (110650615582).

Almost surely, 2^221301231163 is an apocalyptic number.

221301231163 is a deficient number, since it is larger than the sum of its proper divisors (1).

221301231163 is an equidigital number, since it uses as much as digits as its factorization.

221301231163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 221301231163 its reverse (361132103122), we get a palindrome (582433334285).

The spelling of 221301231163 in words is "two hundred twenty-one billion, three hundred one million, two hundred thirty-one thousand, one hundred sixty-three".