1000202221247 has 2 divisors, whose sum is σ = 1000202221248. Its totient is φ = 1000202221246.

The previous prime is 1000202221169. The next prime is 1000202221253. The reversal of 1000202221247 is 7421222020001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000202221247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000202221267) 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, 500101110623 + 500101110624.

It is an arithmetic number, because the mean of its divisors is an integer number (500101110624).

Almost surely, 2^{1000202221247} is an apocalyptic number.

1000202221247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000202221247 is an equidigital number, since it uses as much as digits as its factorization.

1000202221247 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 1000202221247 its reverse (7421222020001), we get a palindrome (8421424241248).

The spelling of 1000202221247 in words is "one trillion, two hundred two million, two hundred twenty-one thousand, two hundred forty-seven".