9212201 has 4 divisors (see below), whose sum is σ = 9368400. Its totient is φ = 9056004.

The previous prime is 9212197. The next prime is 9212209. The reversal of 9212201 is 1022129.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9212201 - 2² = 9212197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9212201.

It is not an unprimeable number, because it can be changed into a prime (9212209) 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, 78011 + ... + 78128.

It is an arithmetic number, because the mean of its divisors is an integer number (2342100).

Almost surely, 2^9212201 is an apocalyptic number.

It is an amenable number.

9212201 is a deficient number, since it is larger than the sum of its proper divisors (156199).

9212201 is a wasteful number, since it uses less digits than its factorization.

9212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156198.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 9212201 is about 3035.1607865153. The cubic root of 9212201 is about 209.6304991382.

Subtracting from 9212201 its product of nonzero digits (72), we obtain a palindrome (9212129).

The spelling of 9212201 in words is "nine million, two hundred twelve thousand, two hundred one".