1121220122131 has 2 divisors, whose sum is σ = 1121220122132. Its totient is φ = 1121220122130.

The previous prime is 1121220122129. The next prime is 1121220122153. The reversal of 1121220122131 is 1312210221211.

It is a weak prime.

It is an emirp because it is prime and its reverse (1312210221211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121220122131 - 2¹ = 1121220122129 is a prime.

It is a super-2 number, since 2×1121220122131² (a number of 25 digits) contains 22 as substring.

Together with 1121220122129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1121220122099 and 1121220122108.

It is not a weakly prime, because it can be changed into another prime (1121220122101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560610061065 + 560610061066.

It is an arithmetic number, because the mean of its divisors is an integer number (560610061066).

Almost surely, 2^{1121220122131} is an apocalyptic number.

1121220122131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121220122131 is an equidigital number, since it uses as much as digits as its factorization.

1121220122131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1121220122131 its reverse (1312210221211), we get a palindrome (2433430343342).

The spelling of 1121220122131 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twenty-two thousand, one hundred thirty-one".