121244341240000 has 280 divisors, whose sum is σ = 334166397185808. Its totient is φ = 43256977920000.

The previous prime is 121244341239991. The next prime is 121244341240019. The reversal of 121244341240000 is 42143442121.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20720422 + ... + 25919578.

Almost surely, 2^{121244341240000} is an apocalyptic number.

121244341240000 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 121244341240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167083198592904).

121244341240000 is an abundant number, since it is smaller than the sum of its proper divisors (212922055945808).

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

121244341240000 is an equidigital number, since it uses as much as digits as its factorization.

121244341240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199253 (or 5199228 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 121244341240000 its reverse (42143442121), we get a palindrome (121286484682121).

The spelling of 121244341240000 in words is "one hundred twenty-one trillion, two hundred forty-four billion, three hundred forty-one million, two hundred forty thousand".