221223131411 has 2 divisors, whose sum is σ = 221223131412. Its totient is φ = 221223131410.

The previous prime is 221223131369. The next prime is 221223131413. The reversal of 221223131411 is 114131322122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221223131411 - 2⁶ = 221223131347 is a prime.

Together with 221223131413, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (221223131413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110611565705 + 110611565706.

It is an arithmetic number, because the mean of its divisors is an integer number (110611565706).

Almost surely, 2^221223131411 is an apocalyptic number.

221223131411 is a deficient number, since it is larger than the sum of its proper divisors (1).

221223131411 is an equidigital number, since it uses as much as digits as its factorization.

221223131411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

Adding to 221223131411 its reverse (114131322122), we get a palindrome (335354453533).

The spelling of 221223131411 in words is "two hundred twenty-one billion, two hundred twenty-three million, one hundred thirty-one thousand, four hundred eleven".