221411044331 has 2 divisors, whose sum is σ = 221411044332. Its totient is φ = 221411044330.

The previous prime is 221411044247. The next prime is 221411044333. The reversal of 221411044331 is 133440114122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221411044331 - 2¹⁴ = 221411027947 is a prime.

It is a super-2 number, since 2×221411044331² (a number of 23 digits) contains 22 as substring.

Together with 221411044333, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221411044331.

It is not a weakly prime, because it can be changed into another prime (221411044333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110705522165 + 110705522166.

It is an arithmetic number, because the mean of its divisors is an integer number (110705522166).

Almost surely, 2^221411044331 is an apocalyptic number.

221411044331 is a deficient number, since it is larger than the sum of its proper divisors (1).

221411044331 is an equidigital number, since it uses as much as digits as its factorization.

221411044331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 221411044331 its reverse (133440114122), we get a palindrome (354851158453).

The spelling of 221411044331 in words is "two hundred twenty-one billion, four hundred eleven million, forty-four thousand, three hundred thirty-one".