1002001212211 has 4 divisors (see below), whose sum is σ = 1002036474000. Its totient is φ = 1001965950424.

The previous prime is 1002001212203. The next prime is 1002001212259. The reversal of 1002001212211 is 1122121002001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002001212211 - 2³ = 1002001212203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002001212191 and 1002001212200.

It is not an unprimeable number, because it can be changed into a prime (1002001212011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17588236 + ... + 17645113.

It is an arithmetic number, because the mean of its divisors is an integer number (250509118500).

Almost surely, 2^{1002001212211} is an apocalyptic number.

1002001212211 is a deficient number, since it is larger than the sum of its proper divisors (35261789).

1002001212211 is an equidigital number, since it uses as much as digits as its factorization.

1002001212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35261788.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1002001212211 its reverse (1122121002001), we get a palindrome (2124122214212).

The spelling of 1002001212211 in words is "one trillion, two billion, one million, two hundred twelve thousand, two hundred eleven".