1122204509 has 2 divisors, whose sum is σ = 1122204510. Its totient is φ = 1122204508.

The previous prime is 1122204437. The next prime is 1122204511. The reversal of 1122204509 is 9054022211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1120776484 + 1428025 = 33478^2 + 1195^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122204509 - 2²⁴ = 1105427293 is a prime.

Together with 1122204511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122204599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561102254 + 561102255.

It is an arithmetic number, because the mean of its divisors is an integer number (561102255).

Almost surely, 2^1122204509 is an apocalyptic number.

It is an amenable number.

1122204509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122204509 is an equidigital number, since it uses as much as digits as its factorization.

1122204509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1122204509 is about 33499.3210229700. The cubic root of 1122204509 is about 1039.1797369075.

The spelling of 1122204509 in words is "one billion, one hundred twenty-two million, two hundred four thousand, five hundred nine".