221303222113331 has 2 divisors, whose sum is σ = 221303222113332. Its totient is φ = 221303222113330.

The previous prime is 221303222113327. The next prime is 221303222113333. The reversal of 221303222113331 is 133311222303122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221303222113331 - 2² = 221303222113327 is a prime.

It is a super-2 number, since 2×221303222113331² (a number of 29 digits) contains 22 as substring.

Together with 221303222113333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 221303222113294 and 221303222113303.

It is not a weakly prime, because it can be changed into another prime (221303222113333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110651611056665 + 110651611056666.

It is an arithmetic number, because the mean of its divisors is an integer number (110651611056666).

Almost surely, 2^{221303222113331} is an apocalyptic number.

221303222113331 is a deficient number, since it is larger than the sum of its proper divisors (1).

221303222113331 is an equidigital number, since it uses as much as digits as its factorization.

221303222113331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 221303222113331 its reverse (133311222303122), we get a palindrome (354614444416453).

The spelling of 221303222113331 in words is "two hundred twenty-one trillion, three hundred three billion, two hundred twenty-two million, one hundred thirteen thousand, three hundred thirty-one".