121195896832 has 56 divisors (see below), whose sum is σ = 242525740500. Its totient is φ = 60560769024.

The previous prime is 121195896799. The next prime is 121195896839. The reversal of 121195896832 is 238698591121.

It can be written as a sum of positive squares in 2 ways, for example, as 120370139136 + 825757696 = 346944^2 + 28736^2 .

It is not an unprimeable number, because it can be changed into a prime (121195896839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17437294 + ... + 17444242.

Almost surely, 2^121195896832 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 121195896832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121262870250).

121195896832 is an abundant number, since it is smaller than the sum of its proper divisors (121329843668).

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

121195896832 is an frugal number, since it uses more digits than its factorization.

121195896832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9104 (or 9080 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 55.

The spelling of 121195896832 in words is "one hundred twenty-one billion, one hundred ninety-five million, eight hundred ninety-six thousand, eight hundred thirty-two".