202212289 has 4 divisors (see below), whose sum is σ = 207677524. Its totient is φ = 196747056.

The previous prime is 202212259. The next prime is 202212301. The reversal of 202212289 is 982212202.

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 89491600 + 112720689 = 9460^2 + 10617^2 .

It is not a de Polignac number, because 202212289 - 2²⁷ = 67994561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202212209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2732562 + ... + 2732635.

It is an arithmetic number, because the mean of its divisors is an integer number (51919381).

Almost surely, 2^202212289 is an apocalyptic number.

It is an amenable number.

202212289 is a deficient number, since it is larger than the sum of its proper divisors (5465235).

202212289 is an equidigital number, since it uses as much as digits as its factorization.

202212289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465234.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 202212289 is about 14220.1367433650. The cubic root of 202212289 is about 586.9519031277.

The spelling of 202212289 in words is "two hundred two million, two hundred twelve thousand, two hundred eighty-nine".