212212201111 has 8 divisors (see below), whose sum is σ = 215256160800. Its totient is φ = 209169770880.

The previous prime is 212212201109. The next prime is 212212201133. The reversal of 212212201111 is 111102212212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212212201111 - 2¹ = 212212201109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212201181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101406 + ... + 659323.

It is an arithmetic number, because the mean of its divisors is an integer number (26907020100).

Almost surely, 2^212212201111 is an apocalyptic number.

212212201111 is a deficient number, since it is larger than the sum of its proper divisors (3043959689).

212212201111 is an equidigital number, since it uses as much as digits as its factorization.

212212201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764729.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212212201111 its reverse (111102212212), we get a palindrome (323314413323).

The spelling of 212212201111 in words is "two hundred twelve billion, two hundred twelve million, two hundred one thousand, one hundred eleven".