2111211222 has 32 divisors (see below), whose sum is σ = 4342367232. Its totient is φ = 683995104.

The previous prime is 2111211203. The next prime is 2111211229. The reversal of 2111211222 is 2221121112.

It is a super-4 number, since 4×2111211222⁴ (a number of 38 digits) contains 4444 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111211229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3003 + ... + 65049.

It is an arithmetic number, because the mean of its divisors is an integer number (135698976).

Almost surely, 2^2111211222 is an apocalyptic number.

2111211222 is an abundant number, since it is smaller than the sum of its proper divisors (2231156010).

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

2111211222 is a wasteful number, since it uses less digits than its factorization.

2111211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62212.

The product of its digits is 32, while the sum is 15.

The square root of 2111211222 is about 45947.9185818030. The cubic root of 2111211222 is about 1282.8539878350.

Adding to 2111211222 its reverse (2221121112), we get a palindrome (4332332334).

The spelling of 2111211222 in words is "two billion, one hundred eleven million, two hundred eleven thousand, two hundred twenty-two".