2222499809 has 2 divisors, whose sum is σ = 2222499810. Its totient is φ = 2222499808.

The previous prime is 2222499781. The next prime is 2222499847. The reversal of 2222499809 is 9089942222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1602240784 + 620259025 = 40028^2 + 24905^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222499809 - 2⁸ = 2222499553 is a prime.

It is not a weakly prime, because it can be changed into another prime (2222499869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111249904 + 1111249905.

It is an arithmetic number, because the mean of its divisors is an integer number (1111249905).

Almost surely, 2^2222499809 is an apocalyptic number.

It is an amenable number.

2222499809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222499809 is an equidigital number, since it uses as much as digits as its factorization.

2222499809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 2222499809 is about 47143.3962395583. The cubic root of 2222499809 is about 1305.0102139020.

The spelling of 2222499809 in words is "two billion, two hundred twenty-two million, four hundred ninety-nine thousand, eight hundred nine".