212222201110211 has 4 divisors (see below), whose sum is σ = 212223765741000. Its totient is φ = 212220636479424.

The previous prime is 212222201110111. The next prime is 212222201110219. The reversal of 212222201110211 is 112011102222212.

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 212222201110211 - 2²² = 212222196915907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212222201110219) 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, 782111921 + ... + 782383218.

It is an arithmetic number, because the mean of its divisors is an integer number (53055941435250).

Almost surely, 2^{212222201110211} is an apocalyptic number.

212222201110211 is a deficient number, since it is larger than the sum of its proper divisors (1564630789).

212222201110211 is a wasteful number, since it uses less digits than its factorization.

212222201110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564630788.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212222201110211 its reverse (112011102222212), we get a palindrome (324233303332423).

The spelling of 212222201110211 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred one million, one hundred ten thousand, two hundred eleven".