9811150221 has 8 divisors (see below), whose sum is σ = 13147938144. Its totient is φ = 6507564560.

The previous prime is 9811150199. The next prime is 9811150231. The reversal of 9811150221 is 1220511189.

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 9811150221 - 2¹⁴ = 9811133837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9811150231) 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, 8299875 + ... + 8301056.

It is an arithmetic number, because the mean of its divisors is an integer number (1643492268).

Almost surely, 2^9811150221 is an apocalyptic number.

It is an amenable number.

9811150221 is a deficient number, since it is larger than the sum of its proper divisors (3336787923).

9811150221 is a wasteful number, since it uses less digits than its factorization.

9811150221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16601131.

The product of its (nonzero) digits is 1440, while the sum is 30.

The square root of 9811150221 is about 99051.2504767103. The cubic root of 9811150221 is about 2140.7862587454.

The spelling of 9811150221 in words is "nine billion, eight hundred eleven million, one hundred fifty thousand, two hundred twenty-one".