9211121201 has 8 divisors (see below), whose sum is σ = 9597302400. Its totient is φ = 8829510480.

The previous prime is 9211121189. The next prime is 9211121221. The reversal of 9211121201 is 1021211129.

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 9211121201 - 2¹⁴ = 9211104817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9211121221) 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, 1138505 + ... + 1146566.

It is an arithmetic number, because the mean of its divisors is an integer number (1199662800).

Almost surely, 2^9211121201 is an apocalyptic number.

It is an amenable number.

9211121201 is a deficient number, since it is larger than the sum of its proper divisors (386181199).

9211121201 is a wasteful number, since it uses less digits than its factorization.

9211121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285239.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 9211121201 is about 95974.5862246876. The cubic root of 9211121201 is about 2096.2230827455.

The spelling of 9211121201 in words is "nine billion, two hundred eleven million, one hundred twenty-one thousand, two hundred one".