1122125231 has 2 divisors, whose sum is σ = 1122125232. Its totient is φ = 1122125230.

The previous prime is 1122125201. The next prime is 1122125287. The reversal of 1122125231 is 1325212211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1122125231 - 2²² = 1117930927 is a prime.

It is a super-2 number, since 2×1122125231² = 2518330068093606722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122125201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561062615 + 561062616.

It is an arithmetic number, because the mean of its divisors is an integer number (561062616).

Almost surely, 2^1122125231 is an apocalyptic number.

1122125231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122125231 is an equidigital number, since it uses as much as digits as its factorization.

1122125231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 20.

The square root of 1122125231 is about 33498.1377243572. The cubic root of 1122125231 is about 1039.1552654229.

Adding to 1122125231 its reverse (1325212211), we get a palindrome (2447337442).

The spelling of 1122125231 in words is "one billion, one hundred twenty-two million, one hundred twenty-five thousand, two hundred thirty-one".