12252321415 has 4 divisors (see below), whose sum is σ = 14702785704. Its totient is φ = 9801857128.

The previous prime is 12252321353. The next prime is 12252321443. The reversal of 12252321415 is 51412325221.

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: 51412325221 = 8821 ⋅5828401.

It is a cyclic number.

It is not a de Polignac number, because 12252321415 - 2⁷ = 12252321287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225232137 + ... + 1225232146.

It is an arithmetic number, because the mean of its divisors is an integer number (3675696426).

Almost surely, 2^12252321415 is an apocalyptic number.

12252321415 is a deficient number, since it is larger than the sum of its proper divisors (2450464289).

12252321415 is an equidigital number, since it uses as much as digits as its factorization.

12252321415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450464288.

The product of its digits is 4800, while the sum is 28.

Adding to 12252321415 its reverse (51412325221), we get a palindrome (63664646636).

The spelling of 12252321415 in words is "twelve billion, two hundred fifty-two million, three hundred twenty-one thousand, four hundred fifteen".