2211133212 has 36 divisors (see below), whose sum is σ = 5660010720. Its totient is φ = 727713792.

The previous prime is 2211133201. The next prime is 2211133213. The reversal of 2211133212 is 2123311122.

2211133212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2211133212² = 9778220162418873888, which contains 22 as substring.

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

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 (2211133213) 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, 385893 + ... + 391580.

It is an arithmetic number, because the mean of its divisors is an integer number (157222520).

Almost surely, 2^2211133212 is an apocalyptic number.

It is an amenable number.

2211133212 is an abundant number, since it is smaller than the sum of its proper divisors (3448877508).

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

2211133212 is a wasteful number, since it uses less digits than its factorization.

2211133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777562 (or 777557 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2211133212 is about 47022.6882685369. The cubic root of 2211133212 is about 1302.7816595110.

Adding to 2211133212 its reverse (2123311122), we get a palindrome (4334444334).

The spelling of 2211133212 in words is "two billion, two hundred eleven million, one hundred thirty-three thousand, two hundred twelve".