881112209 has 2 divisors, whose sum is σ = 881112210. Its totient is φ = 881112208.

The previous prime is 881112203. The next prime is 881112233. The reversal of 881112209 is 902211188.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 640241809 + 240870400 = 25303^2 + 15520^2 .

It is a cyclic number.

It is not a de Polignac number, because 881112209 - 2⁸ = 881111953 is a prime.

It is not a weakly prime, because it can be changed into another prime (881112203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440556104 + 440556105.

It is an arithmetic number, because the mean of its divisors is an integer number (440556105).

Almost surely, 2^881112209 is an apocalyptic number.

It is an amenable number.

881112209 is a deficient number, since it is larger than the sum of its proper divisors (1).

881112209 is an equidigital number, since it uses as much as digits as its factorization.

881112209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 881112209 is about 29683.5343077606. The cubic root of 881112209 is about 958.6875181380.

The spelling of 881112209 in words is "eight hundred eighty-one million, one hundred twelve thousand, two hundred nine".