2011212222 has 8 divisors (see below), whose sum is σ = 4022424456. Its totient is φ = 670404072.

The previous prime is 2011212221. The next prime is 2011212227. The reversal of 2011212222 is 2222121102.

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

2011212222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011212221) 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 3 ways as a sum of consecutive naturals, for example, 167601013 + ... + 167601024.

It is an arithmetic number, because the mean of its divisors is an integer number (502803057).

Almost surely, 2^2011212222 is an apocalyptic number.

2011212222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2011212222 is a wasteful number, since it uses less digits than its factorization.

2011212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335202042.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2011212222 is about 44846.5408030541. The cubic root of 2011212222 is about 1262.2710829209.

Adding to 2011212222 its reverse (2222121102), we get a palindrome (4233333324).

The spelling of 2011212222 in words is "two billion, eleven million, two hundred twelve thousand, two hundred twenty-two".