12262531011540 has 96 divisors (see below), whose sum is σ = 36356035282560. Its totient is φ = 3077550084096.

The previous prime is 12262531011527. The next prime is 12262531011541. The reversal of 12262531011540 is 4511013526221.

It is a super-2 number, since 2×12262531011540² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12262531011541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32307504 + ... + 32684856.

It is an arithmetic number, because the mean of its divisors is an integer number (378708700860).

Almost surely, 2^{12262531011540} is an apocalyptic number.

12262531011540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12262531011540 is an abundant number, since it is smaller than the sum of its proper divisors (24093504271020).

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

12262531011540 is a wasteful number, since it uses less digits than its factorization.

12262531011540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409241 (or 409239 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 12262531011540 its reverse (4511013526221), we get a palindrome (16773544537761).

The spelling of 12262531011540 in words is "twelve trillion, two hundred sixty-two billion, five hundred thirty-one million, eleven thousand, five hundred forty".