2011021222 has 32 divisors (see below), whose sum is σ = 3658374720. Its totient is φ = 809364480.

The previous prime is 2011021213. The next prime is 2011021223. The reversal of 2011021222 is 2221201102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011021223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100554 + ... + 118882.

It is an arithmetic number, because the mean of its divisors is an integer number (114324210).

Almost surely, 2^2011021222 is an apocalyptic number.

2011021222 is a deficient number, since it is larger than the sum of its proper divisors (1647353498).

2011021222 is a wasteful number, since it uses less digits than its factorization.

2011021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18816.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2011021222 is about 44844.4112682952. The cubic root of 2011021222 is about 1262.2311233703.

Adding to 2011021222 its reverse (2221201102), we get a palindrome (4232222324).

The spelling of 2011021222 in words is "two billion, eleven million, twenty-one thousand, two hundred twenty-two".