9975222 has 12 divisors (see below), whose sum is σ = 21613020. Its totient is φ = 3325068.

The previous prime is 9975197. The next prime is 9975223. The reversal of 9975222 is 2225799.

9975222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 9⁴ + 9⁶ + 7 + 5² + 2² + 2²⁰ + 2²³ .

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 (9975223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277072 + ... + 277107.

It is an arithmetic number, because the mean of its divisors is an integer number (1801085).

Almost surely, 2^9975222 is an apocalyptic number.

9975222 is an abundant number, since it is smaller than the sum of its proper divisors (11637798).

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

9975222 is a wasteful number, since it uses less digits than its factorization.

9975222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554187 (or 554184 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 9975222 is about 3158.3574845163. The cubic root of 9975222 is about 215.2653798899.

The spelling of 9975222 in words is "nine million, nine hundred seventy-five thousand, two hundred twenty-two".