2002001121611 has 2 divisors, whose sum is σ = 2002001121612. Its totient is φ = 2002001121610.

The previous prime is 2002001121599. The next prime is 2002001121643. The reversal of 2002001121611 is 1161211002002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002001121611 - 2²⁶ = 2001934012747 is a prime.

It is a super-2 number, since 2×2002001121611² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2002001121611.

It is not a weakly prime, because it can be changed into another prime (2002001121011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001000560805 + 1001000560806.

It is an arithmetic number, because the mean of its divisors is an integer number (1001000560806).

Almost surely, 2^{2002001121611} is an apocalyptic number.

2002001121611 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002001121611 is an equidigital number, since it uses as much as digits as its factorization.

2002001121611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2002001121611 its reverse (1161211002002), we get a palindrome (3163212123613).

The spelling of 2002001121611 in words is "two trillion, two billion, one million, one hundred twenty-one thousand, six hundred eleven".