1222311332111 has 2 divisors, whose sum is σ = 1222311332112. Its totient is φ = 1222311332110.

The previous prime is 1222311332071. The next prime is 1222311332117. The reversal of 1222311332111 is 1112331132221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222311332111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222311332117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611155666055 + 611155666056.

It is an arithmetic number, because the mean of its divisors is an integer number (611155666056).

Almost surely, 2^{1222311332111} is an apocalyptic number.

1222311332111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222311332111 is an equidigital number, since it uses as much as digits as its factorization.

1222311332111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

Adding to 1222311332111 its reverse (1112331132221), we get a palindrome (2334642464332).

The spelling of 1222311332111 in words is "one trillion, two hundred twenty-two billion, three hundred eleven million, three hundred thirty-two thousand, one hundred eleven".