9221358877 has 4 divisors (see below), whose sum is σ = 9223019100. Its totient is φ = 9219698656.

The previous prime is 9221358833. The next prime is 9221358889. The reversal of 9221358877 is 7788531229.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7788531229 = 35053 ⋅222193.

It can be written as a sum of positive squares in 2 ways, for example, as 612117081 + 8609241796 = 24741^2 + 92786^2 .

It is a cyclic number.

It is not a de Polignac number, because 9221358877 - 2¹⁹ = 9220834589 is a prime.

It is a super-2 number, since 2×9221358877² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9221358077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821752 + ... + 832897.

It is an arithmetic number, because the mean of its divisors is an integer number (2305754775).

Almost surely, 2^9221358877 is an apocalyptic number.

It is an amenable number.

9221358877 is a deficient number, since it is larger than the sum of its proper divisors (1660223).

9221358877 is a wasteful number, since it uses less digits than its factorization.

9221358877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660222.

The product of its digits is 1693440, while the sum is 52.

The square root of 9221358877 is about 96027.9067615243. The cubic root of 9221358877 is about 2096.9994090458. Note that the first 3 decimals are identical.

The spelling of 9221358877 in words is "nine billion, two hundred twenty-one million, three hundred fifty-eight thousand, eight hundred seventy-seven".