121596026880 has 448 divisors, whose sum is σ = 406302594048. Its totient is φ = 31016878080.

The previous prime is 121596026879. The next prime is 121596026921. The reversal of 121596026880 is 88620695121.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 521871244 + ... + 521871476.

Almost surely, 2^121596026880 is an apocalyptic number.

121596026880 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 121596026880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203151297024).

121596026880 is an abundant number, since it is smaller than the sum of its proper divisors (284706567168).

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

121596026880 is a wasteful number, since it uses less digits than its factorization.

121596026880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 121596026880 in words is "one hundred twenty-one billion, five hundred ninety-six million, twenty-six thousand, eight hundred eighty".