1122124261 has 2 divisors, whose sum is σ = 1122124262. Its totient is φ = 1122124260.

The previous prime is 1122124189. The next prime is 1122124277. The reversal of 1122124261 is 1624212211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1045228900 + 76895361 = 32330^2 + 8769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122124261 is a prime.

It is a super-2 number, since 2×1122124261² = 2518325714249592242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122124291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561062130 + 561062131.

It is an arithmetic number, because the mean of its divisors is an integer number (561062131).

Almost surely, 2^1122124261 is an apocalyptic number.

It is an amenable number.

1122124261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122124261 is an equidigital number, since it uses as much as digits as its factorization.

1122124261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 22.

The square root of 1122124261 is about 33498.1232459372. The cubic root of 1122124261 is about 1039.1549659967.

Adding to 1122124261 its reverse (1624212211), we get a palindrome (2746336472).

The spelling of 1122124261 in words is "one billion, one hundred twenty-two million, one hundred twenty-four thousand, two hundred sixty-one".