1122232009 has 2 divisors, whose sum is σ = 1122232010. Its totient is φ = 1122232008.

The previous prime is 1122231989. The next prime is 1122232039. The reversal of 1122232009 is 9002322211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 798232009 + 324000000 = 28253^2 + 18000^2 .

It is an emirp because it is prime and its reverse (9002322211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122232009 - 2⁷ = 1122231881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122232039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561116004 + 561116005.

It is an arithmetic number, because the mean of its divisors is an integer number (561116005).

Almost surely, 2^1122232009 is an apocalyptic number.

It is an amenable number.

1122232009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122232009 is an equidigital number, since it uses as much as digits as its factorization.

1122232009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1122232009 is about 33499.7314765357. The cubic root of 1122232009 is about 1039.1882253215.

The spelling of 1122232009 in words is "one billion, one hundred twenty-two million, two hundred thirty-two thousand, nine".