212112011211 has 16 divisors (see below), whose sum is σ = 295126281216. Its totient is φ = 135253454336.

The previous prime is 212112011093. The next prime is 212112011213. The reversal of 212112011211 is 112110211212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212112011211 - 2¹⁷ = 212111880139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212112011213) 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, 1720126 + ... + 1839308.

It is an arithmetic number, because the mean of its divisors is an integer number (18445392576).

Almost surely, 2^212112011211 is an apocalyptic number.

212112011211 is a deficient number, since it is larger than the sum of its proper divisors (83014270005).

212112011211 is a wasteful number, since it uses less digits than its factorization.

212112011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145002.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212112011211 its reverse (112110211212), we get a palindrome (324222222423).

The spelling of 212112011211 in words is "two hundred twelve billion, one hundred twelve million, eleven thousand, two hundred eleven".