9032201221 has 4 divisors (see below), whose sum is σ = 9047230444. Its totient is φ = 9017172000.

The previous prime is 9032201207. The next prime is 9032201237. The reversal of 9032201221 is 1221022309.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8543304900 + 488896321 = 92430^2 + 22111^2 .

It is a cyclic number.

It is not a de Polignac number, because 9032201221 - 2⁷ = 9032201093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9032201192 and 9032201201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9032201281) 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, 7513710 + ... + 7514911.

It is an arithmetic number, because the mean of its divisors is an integer number (2261807611).

Almost surely, 2^9032201221 is an apocalyptic number.

It is an amenable number.

9032201221 is a deficient number, since it is larger than the sum of its proper divisors (15029223).

9032201221 is a wasteful number, since it uses less digits than its factorization.

9032201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15029222.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 9032201221 is about 95037.8936056561. The cubic root of 9032201221 is about 2082.5616568644.

The spelling of 9032201221 in words is "nine billion, thirty-two million, two hundred one thousand, two hundred twenty-one".