212022211311 has 16 divisors (see below), whose sum is σ = 332583861600. Its totient is φ = 133033544064.

The previous prime is 212022211279. The next prime is 212022211361. The reversal of 212022211311 is 113112220212.

212022211311 is a `hidden beast` number, since 2 + 120 + 22 + 211 + 311 = 666.

It is not a de Polignac number, because 212022211311 - 2⁵ = 212022211279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022211361) 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, 230960556 + ... + 230961473.

It is an arithmetic number, because the mean of its divisors is an integer number (20786491350).

Almost surely, 2^212022211311 is an apocalyptic number.

212022211311 is a deficient number, since it is larger than the sum of its proper divisors (120561650289).

212022211311 is a wasteful number, since it uses less digits than its factorization.

212022211311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461922055 (or 461922049 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 212022211311 its reverse (113112220212), we get a palindrome (325134431523).

The spelling of 212022211311 in words is "two hundred twelve billion, twenty-two million, two hundred eleven thousand, three hundred eleven".