1122152142161 has 2 divisors, whose sum is σ = 1122152142162. Its totient is φ = 1122152142160.

The previous prime is 1122152142143. The next prime is 1122152142173. The reversal of 1122152142161 is 1612412512211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1115336649025 + 6815493136 = 1056095^2 + 82556^2 .

It is an emirp because it is prime and its reverse (1612412512211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122152142161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122152141161) 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, 561076071080 + 561076071081.

It is an arithmetic number, because the mean of its divisors is an integer number (561076071081).

Almost surely, 2^{1122152142161} is an apocalyptic number.

It is an amenable number.

1122152142161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122152142161 is an equidigital number, since it uses as much as digits as its factorization.

1122152142161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 29.

Adding to 1122152142161 its reverse (1612412512211), we get a palindrome (2734564654372).

The spelling of 1122152142161 in words is "one trillion, one hundred twenty-two billion, one hundred fifty-two million, one hundred forty-two thousand, one hundred sixty-one".