9765433222221 has 16 divisors (see below), whose sum is σ = 13235098481280. Its totient is φ = 6403786414080.

The previous prime is 9765433222187. The next prime is 9765433222271. The reversal of 9765433222221 is 1222223345679.

It is not a de Polignac number, because 9765433222221 - 2⁷ = 9765433222093 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9765433222271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94701465 + ... + 94804526.

It is an arithmetic number, because the mean of its divisors is an integer number (827193655080).

Almost surely, 2^{9765433222221} is an apocalyptic number.

It is an amenable number.

9765433222221 is a deficient number, since it is larger than the sum of its proper divisors (3469665259059).

9765433222221 is a wasteful number, since it uses less digits than its factorization.

9765433222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189506276.

The product of its digits is 2177280, while the sum is 48.

The spelling of 9765433222221 in words is "nine trillion, seven hundred sixty-five billion, four hundred thirty-three million, two hundred twenty-two thousand, two hundred twenty-one".