12121541260 has 48 divisors (see below), whose sum is σ = 26536672512. Its totient is φ = 4645728000.

The previous prime is 12121541231. The next prime is 12121541261. The reversal of 12121541260 is 6214512121.

It is not an unprimeable number, because it can be changed into a prime (12121541261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34167 + ... + 159406.

It is an arithmetic number, because the mean of its divisors is an integer number (552847344).

Almost surely, 2^12121541260 is an apocalyptic number.

12121541260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121541260 is an abundant number, since it is smaller than the sum of its proper divisors (14415131252).

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

12121541260 is a wasteful number, since it uses less digits than its factorization.

12121541260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193714 (or 193712 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 12121541260 in words is "twelve billion, one hundred twenty-one million, five hundred forty-one thousand, two hundred sixty".