2212012211 has 4 divisors (see below), whose sum is σ = 2233913424. Its totient is φ = 2190111000.

The previous prime is 2212012199. The next prime is 2212012237. The reversal of 2212012211 is 1122102122.

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 2212012211 - 2⁶ = 2212012147 is a prime.

It is a super-2 number, since 2×2212012211² = 9785996043226217042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212012291) 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, 10950455 + ... + 10950656.

It is an arithmetic number, because the mean of its divisors is an integer number (558478356).

Almost surely, 2^2212012211 is an apocalyptic number.

2212012211 is a deficient number, since it is larger than the sum of its proper divisors (21901213).

2212012211 is a wasteful number, since it uses less digits than its factorization.

2212012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21901212.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2212012211 is about 47032.0338811751. The cubic root of 2212012211 is about 1302.9542696549.

Adding to 2212012211 its reverse (1122102122), we get a palindrome (3334114333).

The spelling of 2212012211 in words is "two billion, two hundred twelve million, twelve thousand, two hundred eleven".