12122404253 has 4 divisors (see below), whose sum is σ = 12123634848. Its totient is φ = 12121173660.

The previous prime is 12122404237. The next prime is 12122404267. The reversal of 12122404253 is 35240422121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12122404253 - 2⁴ = 12122404237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122404223) 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, 600401 + ... + 620262.

It is an arithmetic number, because the mean of its divisors is an integer number (3030908712).

Almost surely, 2^12122404253 is an apocalyptic number.

It is an amenable number.

12122404253 is a deficient number, since it is larger than the sum of its proper divisors (1230595).

12122404253 is an equidigital number, since it uses as much as digits as its factorization.

12122404253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230594.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 12122404253 its reverse (35240422121), we get a palindrome (47362826374).

The spelling of 12122404253 in words is "twelve billion, one hundred twenty-two million, four hundred four thousand, two hundred fifty-three".