121401112000 has 224 divisors, whose sum is σ = 347752903680. Its totient is φ = 41120179200.

The previous prime is 121401111973. The next prime is 121401112003. The reversal of 121401112000 is 211104121.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121401112003) 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, 4634941 + ... + 4661059.

It is an arithmetic number, because the mean of its divisors is an integer number (1552468320).

Almost surely, 2^121401112000 is an apocalyptic number.

121401112000 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 121401112000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173876451840).

121401112000 is an abundant number, since it is smaller than the sum of its proper divisors (226351791680).

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

121401112000 is an equidigital number, since it uses as much as digits as its factorization.

121401112000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26236 (or 26216 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121401112000 its reverse (211104121), we get a palindrome (121612216121).

The spelling of 121401112000 in words is "one hundred twenty-one billion, four hundred one million, one hundred twelve thousand".