12521411224151 has 4 divisors (see below), whose sum is σ = 12521483570904. Its totient is φ = 12521338877400.

The previous prime is 12521411224141. The next prime is 12521411224187. The reversal of 12521411224151 is 15142211412521.

12521411224151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12521411224151 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 (12521411224141) 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, 35913140 + ... + 36260121.

It is an arithmetic number, because the mean of its divisors is an integer number (3130370892726).

Almost surely, 2^{12521411224151} is an apocalyptic number.

12521411224151 is a deficient number, since it is larger than the sum of its proper divisors (72346753).

12521411224151 is an equidigital number, since it uses as much as digits as its factorization.

12521411224151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72346752.

The product of its digits is 6400, while the sum is 32.

Adding to 12521411224151 its reverse (15142211412521), we get a palindrome (27663622636672).

The spelling of 12521411224151 in words is "twelve trillion, five hundred twenty-one billion, four hundred eleven million, two hundred twenty-four thousand, one hundred fifty-one".