9871222095 has 48 divisors (see below), whose sum is σ = 20583613440. Its totient is φ = 4275052992.

The previous prime is 9871222079. The next prime is 9871222187. The reversal of 9871222095 is 5902221789.

It is a happy number.

It is not a de Polignac number, because 9871222095 - 2⁴ = 9871222079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 9871222095.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 818679 + ... + 830648.

It is an arithmetic number, because the mean of its divisors is an integer number (428825280).

Almost surely, 2^9871222095 is an apocalyptic number.

9871222095 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

9871222095 is an abundant number, since it is smaller than the sum of its proper divisors (10712391345).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9871222095 is a wasteful number, since it uses less digits than its factorization.

9871222095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649364 (or 1649361 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 9871222095 is about 99354.0240503624. The cubic root of 9871222095 is about 2145.1465855779.

The spelling of 9871222095 in words is "nine billion, eight hundred seventy-one million, two hundred twenty-two thousand, ninety-five".