11252442121 has 2 divisors, whose sum is σ = 11252442122. Its totient is φ = 11252442120.

The previous prime is 11252442083. The next prime is 11252442167. The reversal of 11252442121 is 12124425211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6202350025 + 5050092096 = 78755^2 + 71064^2 .

It is a cyclic number.

It is not a de Polignac number, because 11252442121 - 2⁹ = 11252441609 is a prime.

It is not a weakly prime, because it can be changed into another prime (11253442121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5626221060 + 5626221061.

It is an arithmetic number, because the mean of its divisors is an integer number (5626221061).

Almost surely, 2^11252442121 is an apocalyptic number.

It is an amenable number.

11252442121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11252442121 is an equidigital number, since it uses as much as digits as its factorization.

11252442121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 25.

Adding to 11252442121 its reverse (12124425211), we get a palindrome (23376867332).

The spelling of 11252442121 in words is "eleven billion, two hundred fifty-two million, four hundred forty-two thousand, one hundred twenty-one".