221301113263 has 2 divisors, whose sum is σ = 221301113264. Its totient is φ = 221301113262.

The previous prime is 221301113261. The next prime is 221301113273. The reversal of 221301113263 is 362311103122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221301113263 - 2¹ = 221301113261 is a prime.

Together with 221301113261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221301113261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110650556631 + 110650556632.

It is an arithmetic number, because the mean of its divisors is an integer number (110650556632).

Almost surely, 2^221301113263 is an apocalyptic number.

221301113263 is a deficient number, since it is larger than the sum of its proper divisors (1).

221301113263 is an equidigital number, since it uses as much as digits as its factorization.

221301113263 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 221301113263 its reverse (362311103122), we get a palindrome (583612216385).

The spelling of 221301113263 in words is "two hundred twenty-one billion, three hundred one million, one hundred thirteen thousand, two hundred sixty-three".