1213222341311 has 2 divisors, whose sum is σ = 1213222341312. Its totient is φ = 1213222341310.

The previous prime is 1213222341299. The next prime is 1213222341319. The reversal of 1213222341311 is 1131432223121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213222341311 - 2¹⁰ = 1213222340287 is a prime.

It is a super-2 number, since 2×1213222341311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213222341319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606611170655 + 606611170656.

It is an arithmetic number, because the mean of its divisors is an integer number (606611170656).

Almost surely, 2^{1213222341311} is an apocalyptic number.

1213222341311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213222341311 is an equidigital number, since it uses as much as digits as its factorization.

1213222341311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

Adding to 1213222341311 its reverse (1131432223121), we get a palindrome (2344654564432).

The spelling of 1213222341311 in words is "one trillion, two hundred thirteen billion, two hundred twenty-two million, three hundred forty-one thousand, three hundred eleven".