12522243251 has 8 divisors (see below), whose sum is σ = 14524734720. Its totient is φ = 10573151688.

The previous prime is 12522243241. The next prime is 12522243263. The reversal of 12522243251 is 15234222521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12522243251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12522243241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13349471 + ... + 13350408.

It is an arithmetic number, because the mean of its divisors is an integer number (1815591840).

Almost surely, 2^12522243251 is an apocalyptic number.

12522243251 is a deficient number, since it is larger than the sum of its proper divisors (2002491469).

12522243251 is an equidigital number, since it uses as much as digits as its factorization.

12522243251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26699953.

The product of its digits is 9600, while the sum is 29.

Adding to 12522243251 its reverse (15234222521), we get a palindrome (27756465772).

The spelling of 12522243251 in words is "twelve billion, five hundred twenty-two million, two hundred forty-three thousand, two hundred fifty-one".