12135126227844 has 48 divisors (see below), whose sum is σ = 29008872889920. Its totient is φ = 3945979599360.

The previous prime is 12135126227831. The next prime is 12135126227891. The reversal of 12135126227844 is 44872262153121.

12135126227844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12135126227844² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12135126227793 and 12135126227802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3583647 + ... + 6092025.

It is an arithmetic number, because the mean of its divisors is an integer number (604351518540).

Almost surely, 2^{12135126227844} is an apocalyptic number.

It is an amenable number.

12135126227844 is an abundant number, since it is smaller than the sum of its proper divisors (16873746662076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12135126227844 is a wasteful number, since it uses less digits than its factorization.

12135126227844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518260 (or 2518258 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The spelling of 12135126227844 in words is "twelve trillion, one hundred thirty-five billion, one hundred twenty-six million, two hundred twenty-seven thousand, eight hundred forty-four".