121332892864 has 224 divisors, whose sum is σ = 275692916736. Its totient is φ = 52664156160.

The previous prime is 121332892829. The next prime is 121332892883. The reversal of 121332892864 is 468298233121.

It is a happy 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, 83504362 + ... + 83505814.

Almost surely, 2^121332892864 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 121332892864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137846458368).

121332892864 is an abundant number, since it is smaller than the sum of its proper divisors (154360023872).

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

121332892864 is a wasteful number, since it uses less digits than its factorization.

121332892864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1613 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The spelling of 121332892864 in words is "one hundred twenty-one billion, three hundred thirty-two million, eight hundred ninety-two thousand, eight hundred sixty-four".