1002002222191 has 2 divisors, whose sum is σ = 1002002222192. Its totient is φ = 1002002222190.

The previous prime is 1002002222147. The next prime is 1002002222227. The reversal of 1002002222191 is 1912222002001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002002222191 - 2¹⁷ = 1002002091119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002002202191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501001111095 + 501001111096.

It is an arithmetic number, because the mean of its divisors is an integer number (501001111096).

Almost surely, 2^{1002002222191} is an apocalyptic number.

1002002222191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002002222191 is an equidigital number, since it uses as much as digits as its factorization.

1002002222191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1002002222191 its reverse (1912222002001), we get a palindrome (2914224224192).

The spelling of 1002002222191 in words is "one trillion, two billion, two million, two hundred twenty-two thousand, one hundred ninety-one".