12510150402121 has 4 divisors (see below), whose sum is σ = 12565261197072. Its totient is φ = 12455039607172.

The previous prime is 12510150402119. The next prime is 12510150402257. The reversal of 12510150402121 is 12120405101521.

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 12510150402121 - 2¹ = 12510150402119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12510150408121) 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, 27555397135 + ... + 27555397588.

It is an arithmetic number, because the mean of its divisors is an integer number (3141315299268).

Almost surely, 2^{12510150402121} is an apocalyptic number.

It is an amenable number.

12510150402121 is a deficient number, since it is larger than the sum of its proper divisors (55110794951).

12510150402121 is an equidigital number, since it uses as much as digits as its factorization.

12510150402121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55110794950.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 12510150402121 its reverse (12120405101521), we get a palindrome (24630555503642).

The spelling of 12510150402121 in words is "twelve trillion, five hundred ten billion, one hundred fifty million, four hundred two thousand, one hundred twenty-one".