1002001211 has 2 divisors, whose sum is σ = 1002001212. Its totient is φ = 1002001210.

The previous prime is 1002001207. The next prime is 1002001219. The reversal of 1002001211 is 1121002001.

It is an a-pointer prime, because the next prime (1002001219) can be obtained adding 1002001211 to its sum of digits (8).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1002001211 - 2² = 1002001207 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002001219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501000605 + 501000606.

It is an arithmetic number, because the mean of its divisors is an integer number (501000606).

Almost surely, 2^1002001211 is an apocalyptic number.

1002001211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002001211 is an equidigital number, since it uses as much as digits as its factorization.

1002001211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1002001211 is about 31654.4027111554. The cubic root of 1002001211 is about 1000.6666258446. Note that the first 4 decimals are identical.

Adding to 1002001211 its reverse (1121002001), we get a palindrome (2123003212).

The spelling of 1002001211 in words is "one billion, two million, one thousand, two hundred eleven".