2111002020111 has 8 divisors (see below), whose sum is σ = 2814977785984. Its totient is φ = 1407180467160.

The previous prime is 2111002020041. The next prime is 2111002020151. The reversal of 2111002020111 is 1110202001112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111002020111 - 2²⁶ = 2110934911247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111002020151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38521285 + ... + 38576046.

It is an arithmetic number, because the mean of its divisors is an integer number (351872223248).

Almost surely, 2^{2111002020111} is an apocalyptic number.

2111002020111 is a deficient number, since it is larger than the sum of its proper divisors (703975765873).

2111002020111 is an equidigital number, since it uses as much as digits as its factorization.

2111002020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77106461.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2111002020111 its reverse (1110202001112), we get a palindrome (3221204021223).

The spelling of 2111002020111 in words is "two trillion, one hundred eleven billion, two million, twenty thousand, one hundred eleven".