12260121888 has 48 divisors (see below), whose sum is σ = 36780367680. Its totient is φ = 3502891776.

The previous prime is 12260121877. The next prime is 12260121889. The reversal of 12260121888 is 88812106221.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (12260121889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9121443 + ... + 9122786.

It is an arithmetic number, because the mean of its divisors is an integer number (766257660).

Almost surely, 2^12260121888 is an apocalyptic number.

It is an amenable number.

12260121888 is an abundant number, since it is smaller than the sum of its proper divisors (24520245792).

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

12260121888 is a wasteful number, since it uses less digits than its factorization.

12260121888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18244249 (or 18244241 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 39.

The spelling of 12260121888 in words is "twelve billion, two hundred sixty million, one hundred twenty-one thousand, eight hundred eighty-eight".