121704192000 has 576 divisors, whose sum is σ = 443867467680. Its totient is φ = 32071680000.

The previous prime is 121704191969. The next prime is 121704192011. The reversal of 121704192000 is 291407121.

It is a tau number, because it is divible by the number of its divisors (576).

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, 232703739 + ... + 232704261.

Almost surely, 2^121704192000 is an apocalyptic number.

121704192000 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 121704192000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221933733840).

121704192000 is an abundant number, since it is smaller than the sum of its proper divisors (322163275680).

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

121704192000 is a wasteful number, since it uses less digits than its factorization.

121704192000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

Adding to 121704192000 its reverse (291407121), we get a palindrome (121995599121).

The spelling of 121704192000 in words is "one hundred twenty-one billion, seven hundred four million, one hundred ninety-two thousand".