12210521760 has 432 divisors, whose sum is σ = 44664014304. Its totient is φ = 3036828672.

The previous prime is 12210521749. The next prime is 12210521861. The reversal of 12210521760 is 6712501221.

12210521760 is a `hidden beast` number, since 122 + 10 + 521 + 7 + 6 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 43146579 + ... + 43146861.

It is an arithmetic number, because the mean of its divisors is an integer number (103388922).

Almost surely, 2^12210521760 is an apocalyptic number.

12210521760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210521760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22332007152).

12210521760 is an abundant number, since it is smaller than the sum of its proper divisors (32453492544).

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

12210521760 is a wasteful number, since it uses less digits than its factorization.

12210521760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The spelling of 12210521760 in words is "twelve billion, two hundred ten million, five hundred twenty-one thousand, seven hundred sixty".