12242253451 has 4 divisors (see below), whose sum is σ = 12886582600. Its totient is φ = 11597924304.

The previous prime is 12242253403. The next prime is 12242253461. The reversal of 12242253451 is 15435224221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15435224221 = 3187 ⋅4843183.

It is a cyclic number.

It is not a de Polignac number, because 12242253451 - 2⁷ = 12242253323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12242253461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322164546 + ... + 322164583.

It is an arithmetic number, because the mean of its divisors is an integer number (3221645650).

Almost surely, 2^12242253451 is an apocalyptic number.

12242253451 is a deficient number, since it is larger than the sum of its proper divisors (644329149).

12242253451 is an equidigital number, since it uses as much as digits as its factorization.

12242253451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644329148.

The product of its digits is 19200, while the sum is 31.

Adding to 12242253451 its reverse (15435224221), we get a palindrome (27677477672).

The spelling of 12242253451 in words is "twelve billion, two hundred forty-two million, two hundred fifty-three thousand, four hundred fifty-one".