1002001222247 has 2 divisors, whose sum is σ = 1002001222248. Its totient is φ = 1002001222246.

The previous prime is 1002001222219. The next prime is 1002001222249. The reversal of 1002001222247 is 7422221002001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002001222247 - 2¹⁰ = 1002001221223 is a prime.

Together with 1002001222249, 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 (1002001222249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501000611123 + 501000611124.

It is an arithmetic number, because the mean of its divisors is an integer number (501000611124).

Almost surely, 2^{1002001222247} is an apocalyptic number.

1002001222247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002001222247 is an equidigital number, since it uses as much as digits as its factorization.

1002001222247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

Adding to 1002001222247 its reverse (7422221002001), we get a palindrome (8424222224248).

The spelling of 1002001222247 in words is "one trillion, two billion, one million, two hundred twenty-two thousand, two hundred forty-seven".