9216121499 has 8 divisors (see below), whose sum is σ = 10087760592. Its totient is φ = 8367726240.

The previous prime is 9216121487. The next prime is 9216121507. The reversal of 9216121499 is 9941216129.

9216121499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-9216121499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9216121429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5810129 + ... + 5811714.

It is an arithmetic number, because the mean of its divisors is an integer number (1260970074).

Almost surely, 2^9216121499 is an apocalyptic number.

9216121499 is a deficient number, since it is larger than the sum of its proper divisors (871639093).

9216121499 is a wasteful number, since it uses less digits than its factorization.

9216121499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11621917.

The product of its digits is 69984, while the sum is 44.

The square root of 9216121499 is about 96000.6328052060. The cubic root of 9216121499 is about 2096.6023287948.

The spelling of 9216121499 in words is "nine billion, two hundred sixteen million, one hundred twenty-one thousand, four hundred ninety-nine".