1001222041 has 2 divisors, whose sum is σ = 1001222042. Its totient is φ = 1001222040.

The previous prime is 1001222023. The next prime is 1001222077. The reversal of 1001222041 is 1402221001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 812022016 + 189200025 = 28496^2 + 13755^2 .

It is an emirp because it is prime and its reverse (1402221001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1001222041 - 2⁷ = 1001221913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001232041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500611020 + 500611021.

It is an arithmetic number, because the mean of its divisors is an integer number (500611021).

Almost surely, 2^1001222041 is an apocalyptic number.

It is an amenable number.

1001222041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001222041 is an equidigital number, since it uses as much as digits as its factorization.

1001222041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1001222041 is about 31642.0928669391. The cubic root of 1001222041 is about 1000.4071811810.

Adding to 1001222041 its reverse (1402221001), we get a palindrome (2403443042).

The spelling of 1001222041 in words is "one billion, one million, two hundred twenty-two thousand, forty-one".