12225330251 has 4 divisors (see below), whose sum is σ = 12233922912. Its totient is φ = 12216737592.

The previous prime is 12225330217. The next prime is 12225330253. The reversal of 12225330251 is 15203352221.

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: 15203352221 = 6277 ⋅2422073.

It is a cyclic number.

It is not a de Polignac number, because 12225330251 - 2¹⁰ = 12225329227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12225330251.

It is not an unprimeable number, because it can be changed into a prime (12225330253) 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, 4294196 + ... + 4297041.

It is an arithmetic number, because the mean of its divisors is an integer number (3058480728).

Almost surely, 2^12225330251 is an apocalyptic number.

12225330251 is a deficient number, since it is larger than the sum of its proper divisors (8592661).

12225330251 is an equidigital number, since it uses as much as digits as its factorization.

12225330251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8592660.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 12225330251 its reverse (15203352221), we get a palindrome (27428682472).

The spelling of 12225330251 in words is "twelve billion, two hundred twenty-five million, three hundred thirty thousand, two hundred fifty-one".