12011010109980 has 192 divisors, whose sum is σ = 38495120928768. Its totient is φ = 2741099535360.

The previous prime is 12011010109957. The next prime is 12011010109981. The reversal of 12011010109980 is 8990101011021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011010109981) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 760615885 + ... + 760631675.

It is an arithmetic number, because the mean of its divisors is an integer number (200495421504).

Almost surely, 2^{12011010109980} is an apocalyptic number.

12011010109980 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 12011010109980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19247560464384).

12011010109980 is an abundant number, since it is smaller than the sum of its proper divisors (26484110818788).

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

12011010109980 is a wasteful number, since it uses less digits than its factorization.

12011010109980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18516 (or 18514 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 33.

The spelling of 12011010109980 in words is "twelve trillion, eleven billion, ten million, one hundred nine thousand, nine hundred eighty".