1210112209 has 8 divisors (see below), whose sum is σ = 1227231360. Its totient is φ = 1193094000.

The previous prime is 1210112201. The next prime is 1210112213. The reversal of 1210112209 is 9022110121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1210112209 - 2³ = 1210112201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210112201) 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 7 ways as a sum of consecutive naturals, for example, 927 + ... + 49204.

It is an arithmetic number, because the mean of its divisors is an integer number (153403920).

Almost surely, 2^1210112209 is an apocalyptic number.

It is an amenable number.

1210112209 is a deficient number, since it is larger than the sum of its proper divisors (17119151).

1210112209 is a wasteful number, since it uses less digits than its factorization.

1210112209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50471.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1210112209 is about 34786.6671154338. The cubic root of 1210112209 is about 1065.6351751869.

It can be divided in two parts, 12101 and 12209, that added together give a triangular number (24310 = T₂₂₀).

The spelling of 1210112209 in words is "one billion, two hundred ten million, one hundred twelve thousand, two hundred nine".