12082101540 has 48 divisors (see below), whose sum is σ = 34468193088. Its totient is φ = 3161102464.

The previous prime is 12082101527. The next prime is 12082101547. The reversal of 12082101540 is 4510128021.

It is a self number, because there is not a number n which added to its sum of digits gives 12082101540.

It is not an unprimeable number, because it can be changed into a prime (12082101547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1896522 + ... + 1902881.

It is an arithmetic number, because the mean of its divisors is an integer number (718087356).

Almost surely, 2^12082101540 is an apocalyptic number.

12082101540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12082101540 is an abundant number, since it is smaller than the sum of its proper divisors (22386091548).

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

12082101540 is a wasteful number, since it uses less digits than its factorization.

12082101540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799468 (or 3799466 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 12082101540 its reverse (4510128021), we get a palindrome (16592229561).

The spelling of 12082101540 in words is "twelve billion, eighty-two million, one hundred one thousand, five hundred forty".