1001002221179 has 2 divisors, whose sum is σ = 1001002221180. Its totient is φ = 1001002221178.

The previous prime is 1001002221157. The next prime is 1001002221221. The reversal of 1001002221179 is 9711222001001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001002221179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001002221679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500501110589 + 500501110590.

It is an arithmetic number, because the mean of its divisors is an integer number (500501110590).

Almost surely, 2^{1001002221179} is an apocalyptic number.

1001002221179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001002221179 is an equidigital number, since it uses as much as digits as its factorization.

1001002221179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 1001002221179 in words is "one trillion, one billion, two million, two hundred twenty-one thousand, one hundred seventy-nine".