12201089 has 2 divisors, whose sum is σ = 12201090. Its totient is φ = 12201088.

The previous prime is 12201061. The next prime is 12201131. The reversal of 12201089 is 98010221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9560464 + 2640625 = 3092^2 + 1625^2 .

It is an emirp because it is prime and its reverse (98010221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201089 is a prime.

It is a Chen prime.

It is equal to p₈₀₀₃₄₈ and since 12201089 and 800348 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12203089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100544 + 6100545.

It is an arithmetic number, because the mean of its divisors is an integer number (6100545).

Almost surely, 2^12201089 is an apocalyptic number.

It is an amenable number.

12201089 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201089 is an equidigital number, since it uses as much as digits as its factorization.

12201089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 12201089 is about 3493.0057257325. The cubic root of 12201089 is about 230.2146012166.

The spelling of 12201089 in words is "twelve million, two hundred one thousand, eighty-nine".