2002120121211 has 16 divisors (see below), whose sum is σ = 3085128921600. Its totient is φ = 1131213935808.

The previous prime is 2002120121189. The next prime is 2002120121213. The reversal of 2002120121211 is 1121210212002.

It is a de Polignac number, because none of the positive numbers 2^k-2002120121211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2002120121213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535610791 + ... + 535614528.

It is an arithmetic number, because the mean of its divisors is an integer number (192820557600).

Almost surely, 2^{2002120121211} is an apocalyptic number.

2002120121211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2002120121211 is a deficient number, since it is larger than the sum of its proper divisors (1083008800389).

2002120121211 is a wasteful number, since it uses less digits than its factorization.

2002120121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071225418.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2002120121211 its reverse (1121210212002), we get a palindrome (3123330333213).

The spelling of 2002120121211 in words is "two trillion, two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred eleven".