121889288374080 has 224 divisors, whose sum is σ = 392479710197760. Its totient is φ = 32043516610560.

The previous prime is 121889288374001. The next prime is 121889288374097. The reversal of 121889288374080 is 80473882988121.

It is a junction number, because it is equal to n+sod(n) for n = 121889288373996 and 121889288374014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 976465911 + ... + 976590729.

Almost surely, 2^{121889288374080} is an apocalyptic number.

121889288374080 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 121889288374080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196239855098880).

121889288374080 is an abundant number, since it is smaller than the sum of its proper divisors (270590421823680).

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

121889288374080 is a wasteful number, since it uses less digits than its factorization.

121889288374080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139237 (or 139227 counting only the distinct ones).

The product of its (nonzero) digits is 99090432, while the sum is 69.

The spelling of 121889288374080 in words is "one hundred twenty-one trillion, eight hundred eighty-nine billion, two hundred eighty-eight million, three hundred seventy-four thousand, eighty".