2212111206 has 24 divisors (see below), whose sum is σ = 4947518784. Its totient is φ = 713584080.

The previous prime is 2212111201. The next prime is 2212111207. The reversal of 2212111206 is 6021112122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212111201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1981621 + ... + 1982736.

It is an arithmetic number, because the mean of its divisors is an integer number (206146616).

Almost surely, 2^2212111206 is an apocalyptic number.

2212111206 is an abundant number, since it is smaller than the sum of its proper divisors (2735407578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2212111206 is a wasteful number, since it uses less digits than its factorization.

2212111206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964396 (or 3964393 counting only the distinct ones).

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

The square root of 2212111206 is about 47033.0862903977. The cubic root of 2212111206 is about 1302.9737065629.

Adding to 2212111206 its reverse (6021112122), we get a palindrome (8233223328).

The spelling of 2212111206 in words is "two billion, two hundred twelve million, one hundred eleven thousand, two hundred six".