211120100002111 has 4 divisors (see below), whose sum is σ = 214093622537424. Its totient is φ = 208146577466800.

The previous prime is 211120100002073. The next prime is 211120100002187. The reversal of 211120100002111 is 111200001021112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211120100002111 - 2¹⁵ = 211120099969343 is a prime.

It is a super-3 number, since 3×211120100002111³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211120100002091 and 211120100002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120100032111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1486761267550 + ... + 1486761267691.

It is an arithmetic number, because the mean of its divisors is an integer number (53523405634356).

Almost surely, 2^{211120100002111} is an apocalyptic number.

211120100002111 is a deficient number, since it is larger than the sum of its proper divisors (2973522535313).

211120100002111 is an equidigital number, since it uses as much as digits as its factorization.

211120100002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973522535312.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211120100002111 its reverse (111200001021112), we get a palindrome (322320101023223).

The spelling of 211120100002111 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred million, two thousand, one hundred eleven".