1122002009 has 2 divisors, whose sum is σ = 1122002010. Its totient is φ = 1122002008.

The previous prime is 1122001987. The next prime is 1122002017. The reversal of 1122002009 is 9002002211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1067655625 + 54346384 = 32675^2 + 7372^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122002009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122002029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561001004 + 561001005.

It is an arithmetic number, because the mean of its divisors is an integer number (561001005).

Almost surely, 2^1122002009 is an apocalyptic number.

It is an amenable number.

1122002009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122002009 is an equidigital number, since it uses as much as digits as its factorization.

1122002009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1122002009 is about 33496.2984372901. The cubic root of 1122002009 is about 1039.1172270430.

The spelling of 1122002009 in words is "one billion, one hundred twenty-two million, two thousand, nine".