12521012097 has 16 divisors (see below), whose sum is σ = 18276749568. Its totient is φ = 7561672080.

The previous prime is 12521012051. The next prime is 12521012129. The reversal of 12521012097 is 79021012521.

It is not a de Polignac number, because 12521012097 - 2¹² = 12521008001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12521012197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661023 + ... + 679700.

It is an arithmetic number, because the mean of its divisors is an integer number (1142296848).

Almost surely, 2^12521012097 is an apocalyptic number.

It is an amenable number.

12521012097 is a deficient number, since it is larger than the sum of its proper divisors (5755737471).

12521012097 is a wasteful number, since it uses less digits than its factorization.

12521012097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341020.

The product of its (nonzero) digits is 2520, while the sum is 30.

The spelling of 12521012097 in words is "twelve billion, five hundred twenty-one million, twelve thousand, ninety-seven".