1001222023 has 2 divisors, whose sum is σ = 1001222024. Its totient is φ = 1001222022.

The previous prime is 1001222017. The next prime is 1001222041. The reversal of 1001222023 is 3202221001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001222023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001221994 and 1001222012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001222323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500611011 + 500611012.

It is an arithmetic number, because the mean of its divisors is an integer number (500611012).

Almost surely, 2^1001222023 is an apocalyptic number.

1001222023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001222023 is an equidigital number, since it uses as much as digits as its factorization.

1001222023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1001222023 is about 31642.0925825079. The cubic root of 1001222023 is about 1000.4071751859.

Adding to 1001222023 its reverse (3202221001), we get a palindrome (4203443024).

The spelling of 1001222023 in words is "one billion, one million, two hundred twenty-two thousand, twenty-three".