12121632760 has 128 divisors (see below), whose sum is σ = 28369440000. Its totient is φ = 4658632704.

The previous prime is 12121632737. The next prime is 12121632763. The reversal of 12121632760 is 6723612121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121632763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30532882 + ... + 30533278.

It is an arithmetic number, because the mean of its divisors is an integer number (221636250).

Almost surely, 2^12121632760 is an apocalyptic number.

12121632760 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 12121632760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14184720000).

12121632760 is an abundant number, since it is smaller than the sum of its proper divisors (16247807240).

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

12121632760 is a wasteful number, since it uses less digits than its factorization.

12121632760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 12121632760 in words is "twelve billion, one hundred twenty-one million, six hundred thirty-two thousand, seven hundred sixty".