1211122122239 has 2 divisors, whose sum is σ = 1211122122240. Its totient is φ = 1211122122238.

The previous prime is 1211122122169. The next prime is 1211122122307. The reversal of 1211122122239 is 9322212211121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211122122239 - 2⁸ = 1211122121983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211122128239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605561061119 + 605561061120.

It is an arithmetic number, because the mean of its divisors is an integer number (605561061120).

Almost surely, 2^{1211122122239} is an apocalyptic number.

1211122122239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211122122239 is an equidigital number, since it uses as much as digits as its factorization.

1211122122239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The spelling of 1211122122239 in words is "one trillion, two hundred eleven billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred thirty-nine".