12121011801060 has 96 divisors (see below), whose sum is σ = 36015270278400. Its totient is φ = 3035360821248.

The previous prime is 12121011800999. The next prime is 12121011801071. The reversal of 12121011801060 is 6010811012121.

It is a self number, because there is not a number n which added to its sum of digits gives 12121011801060.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12775144 + ... + 13691103.

It is an arithmetic number, because the mean of its divisors is an integer number (375159065400).

Almost surely, 2^{12121011801060} is an apocalyptic number.

12121011801060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121011801060 is an abundant number, since it is smaller than the sum of its proper divisors (23894258477340).

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

12121011801060 is a wasteful number, since it uses less digits than its factorization.

12121011801060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26466725 (or 26466723 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 24.

Adding to 12121011801060 its reverse (6010811012121), we get a palindrome (18131822813181).

The spelling of 12121011801060 in words is "twelve trillion, one hundred twenty-one billion, eleven million, eight hundred one thousand, sixty".