12135025102 has 16 divisors (see below), whose sum is σ = 19743357312. Its totient is φ = 5571316480.

The previous prime is 12135025099. The next prime is 12135025103. The reversal of 12135025102 is 20152053121.

It is a super-2 number, since 2×12135025102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12135025103) 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 7 ways as a sum of consecutive naturals, for example, 4351198 + ... + 4353985.

It is an arithmetic number, because the mean of its divisors is an integer number (1233959832).

Almost surely, 2^12135025102 is an apocalyptic number.

12135025102 is a deficient number, since it is larger than the sum of its proper divisors (7608332210).

12135025102 is a wasteful number, since it uses less digits than its factorization.

12135025102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8705243.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 12135025102 its reverse (20152053121), we get a palindrome (32287078223).

The spelling of 12135025102 in words is "twelve billion, one hundred thirty-five million, twenty-five thousand, one hundred two".