122213231113111 has 2 divisors, whose sum is σ = 122213231113112. Its totient is φ = 122213231113110.

The previous prime is 122213231113109. The next prime is 122213231113133. The reversal of 122213231113111 is 111311132312221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122213231113111 - 2¹ = 122213231113109 is a prime.

Together with 122213231113109, 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 (122213231113711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61106615556555 + 61106615556556.

It is an arithmetic number, because the mean of its divisors is an integer number (61106615556556).

Almost surely, 2^{122213231113111} is an apocalyptic number.

122213231113111 is a deficient number, since it is larger than the sum of its proper divisors (1).

122213231113111 is an equidigital number, since it uses as much as digits as its factorization.

122213231113111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 25.

Adding to 122213231113111 its reverse (111311132312221), we get a palindrome (233524363425332).

The spelling of 122213231113111 in words is "one hundred twenty-two trillion, two hundred thirteen billion, two hundred thirty-one million, one hundred thirteen thousand, one hundred eleven".