2002120111291 has 2 divisors, whose sum is σ = 2002120111292. Its totient is φ = 2002120111290.

The previous prime is 2002120111279. The next prime is 2002120111333. The reversal of 2002120111291 is 1921110212002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002120111291 - 2⁷ = 2002120111163 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002120118291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001060055645 + 1001060055646.

It is an arithmetic number, because the mean of its divisors is an integer number (1001060055646).

Almost surely, 2^{2002120111291} is an apocalyptic number.

2002120111291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002120111291 is an equidigital number, since it uses as much as digits as its factorization.

2002120111291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 2002120111291 its reverse (1921110212002), we get a palindrome (3923230323293).

The spelling of 2002120111291 in words is "two trillion, two billion, one hundred twenty million, one hundred eleven thousand, two hundred ninety-one".