2111212112211 has 16 divisors (see below), whose sum is σ = 3127886329120. Its totient is φ = 1407400634880.

The previous prime is 2111212112203. The next prime is 2111212112263. The reversal of 2111212112211 is 1122112121112.

It is a happy number.

2111212112211 is a `hidden beast` number, since 211 + 1 + 21 + 211 + 221 + 1 = 666.

It is not a de Polignac number, because 2111212112211 - 2³ = 2111212112203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111212110211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1533790 + ... + 2564163.

It is an arithmetic number, because the mean of its divisors is an integer number (195492895570).

Almost surely, 2^{2111212112211} is an apocalyptic number.

2111212112211 is a deficient number, since it is larger than the sum of its proper divisors (1016674216909).

2111212112211 is a wasteful number, since it uses less digits than its factorization.

2111212112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4117043 (or 4117037 counting only the distinct ones).

The product of its digits is 32, while the sum is 18.

Adding to 2111212112211 its reverse (1122112121112), we get a palindrome (3233324233323).

The spelling of 2111212112211 in words is "two trillion, one hundred eleven billion, two hundred twelve million, one hundred twelve thousand, two hundred eleven".