9881222913 has 16 divisors (see below), whose sum is σ = 14857341760. Its totient is φ = 6489160128.

The previous prime is 9881222893. The next prime is 9881222927. The reversal of 9881222913 is 3192221889.

It is a happy number.

It is not a de Polignac number, because 9881222913 - 2¹⁷ = 9881091841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9881222933) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2729320 + ... + 2732937.

It is an arithmetic number, because the mean of its divisors is an integer number (928583860).

Almost surely, 2^9881222913 is an apocalyptic number.

It is an amenable number.

9881222913 is a deficient number, since it is larger than the sum of its proper divisors (4976118847).

9881222913 is a wasteful number, since it uses less digits than its factorization.

9881222913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462333 (or 5462327 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 9881222913 is about 99404.3405138830. The cubic root of 9881222913 is about 2145.8707775607.

The spelling of 9881222913 in words is "nine billion, eight hundred eighty-one million, two hundred twenty-two thousand, nine hundred thirteen".