1122112209 has 16 divisors (see below), whose sum is σ = 1562639040. Its totient is φ = 715515840.

The previous prime is 1122112207. The next prime is 1122112289. The reversal of 1122112209 is 9022112211.

It is not a de Polignac number, because 1122112209 - 2¹ = 1122112207 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1122112207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79122 + ... + 92219.

It is an arithmetic number, because the mean of its divisors is an integer number (97664940).

Almost surely, 2^1122112209 is an apocalyptic number.

It is an amenable number.

1122112209 is a deficient number, since it is larger than the sum of its proper divisors (440526831).

1122112209 is a wasteful number, since it uses less digits than its factorization.

1122112209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171440.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1122112209 is about 33497.9433547793. The cubic root of 1122112209 is about 1039.1512456896.

The spelling of 1122112209 in words is "one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred nine".