121001992414528 has 224 divisors, whose sum is σ = 262717367132160. Its totient is φ = 55121250539520.

The previous prime is 121001992414489. The next prime is 121001992414531. The reversal of 121001992414528 is 825414299100121.

121001992414528 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 3757459675 + ... + 3757491877.

Almost surely, 2^{121001992414528} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121001992414528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131358683566080).

121001992414528 is an abundant number, since it is smaller than the sum of its proper divisors (141715374717632).

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

121001992414528 is a wasteful number, since it uses less digits than its factorization.

121001992414528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33565 (or 33555 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 121001992414528 in words is "one hundred twenty-one trillion, one billion, nine hundred ninety-two million, four hundred fourteen thousand, five hundred twenty-eight".