99322121 has 8 divisors (see below), whose sum is σ = 101252424. Its totient is φ = 97407360.

The previous prime is 99322103. The next prime is 99322127. The reversal of 99322121 is 12122399.

It can be written as a sum of positive squares in 4 ways, for example, as 11806096 + 87516025 = 3436^2 + 9355^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 99322121 - 2¹⁰ = 99321097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99322127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9455 + ... + 16971.

It is an arithmetic number, because the mean of its divisors is an integer number (12656553).

Almost surely, 2^99322121 is an apocalyptic number.

It is an amenable number.

99322121 is a deficient number, since it is larger than the sum of its proper divisors (1930303).

99322121 is a wasteful number, since it uses less digits than its factorization.

99322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7771.

The product of its digits is 1944, while the sum is 29.

The square root of 99322121 is about 9966.0484144921. The cubic root of 99322121 is about 463.1076926383.

The spelling of 99322121 in words is "ninety-nine million, three hundred twenty-two thousand, one hundred twenty-one".