9995331121 has 8 divisors (see below), whose sum is σ = 10554598080. Its totient is φ = 9439383888.

The previous prime is 9995331113. The next prime is 9995331127. The reversal of 9995331121 is 1211335999.

It is a happy number.

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 9995331121 - 2³ = 9995331113 is a prime.

It is a super-2 number, since 2×9995331121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9995331127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823741 + ... + 835786.

It is an arithmetic number, because the mean of its divisors is an integer number (1319324760).

Almost surely, 2^9995331121 is an apocalyptic number.

It is an amenable number.

9995331121 is a deficient number, since it is larger than the sum of its proper divisors (559266959).

9995331121 is a wasteful number, since it uses less digits than its factorization.

9995331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659863.

The product of its digits is 65610, while the sum is 43.

The square root of 9995331121 is about 99976.6528795598. The cubic root of 9995331121 is about 2154.0993446742.

The spelling of 9995331121 in words is "nine billion, nine hundred ninety-five million, three hundred thirty-one thousand, one hundred twenty-one".