2002121082011 has 2 divisors, whose sum is σ = 2002121082012. Its totient is φ = 2002121082010.

The previous prime is 2002121082007. The next prime is 2002121082041. The reversal of 2002121082011 is 1102801212002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002121082011 - 2² = 2002121082007 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2002121082041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001060541005 + 1001060541006.

It is an arithmetic number, because the mean of its divisors is an integer number (1001060541006).

Almost surely, 2^{2002121082011} is an apocalyptic number.

2002121082011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002121082011 is an equidigital number, since it uses as much as digits as its factorization.

2002121082011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 2002121082011 its reverse (1102801212002), we get a palindrome (3104922294013).

The spelling of 2002121082011 in words is "two trillion, two billion, one hundred twenty-one million, eighty-two thousand, eleven".