121105441200000 has 384 divisors, whose sum is σ = 402354302676480. Its totient is φ = 32272928000000.

The previous prime is 121105441199959. The next prime is 121105441200043. The reversal of 121105441200000 is 2144501121.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 121105441200000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1813166605 + ... + 1813233395.

It is an arithmetic number, because the mean of its divisors is an integer number (1047797663220).

Almost surely, 2^{121105441200000} is an apocalyptic number.

121105441200000 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 121105441200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201177151338240).

121105441200000 is an abundant number, since it is smaller than the sum of its proper divisors (281248861476480).

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

121105441200000 is an frugal number, since it uses more digits than its factorization.

121105441200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68344 (or 68312 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 121105441200000 its reverse (2144501121), we get a palindrome (121107585701121).

The spelling of 121105441200000 in words is "one hundred twenty-one trillion, one hundred five billion, four hundred forty-one million, two hundred thousand".