1241122109 has 2 divisors, whose sum is σ = 1241122110. Its totient is φ = 1241122108.

The previous prime is 1241122079. The next prime is 1241122121. The reversal of 1241122109 is 9012211421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1219546084 + 21576025 = 34922^2 + 4645^2 .

It is an emirp because it is prime and its reverse (9012211421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1241122109 - 2⁸ = 1241121853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241122139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620561054 + 620561055.

It is an arithmetic number, because the mean of its divisors is an integer number (620561055).

Almost surely, 2^1241122109 is an apocalyptic number.

It is an amenable number.

1241122109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241122109 is an equidigital number, since it uses as much as digits as its factorization.

1241122109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1241122109 is about 35229.5629975735. The cubic root of 1241122109 is about 1074.6610386885.

The spelling of 1241122109 in words is "one billion, two hundred forty-one million, one hundred twenty-two thousand, one hundred nine".