2012221222 has 32 divisors (see below), whose sum is σ = 3403736064. Its totient is φ = 883893600.

The previous prime is 2012221219. The next prime is 2012221223. The reversal of 2012221222 is 2221222102.

It is a junction number, because it is equal to n+sod(n) for n = 2012221196 and 2012221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012221223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616948 + ... + 620200.

It is an arithmetic number, because the mean of its divisors is an integer number (106366752).

Almost surely, 2^2012221222 is an apocalyptic number.

2012221222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2012221222 is a deficient number, since it is larger than the sum of its proper divisors (1391514842).

2012221222 is a wasteful number, since it uses less digits than its factorization.

2012221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2012221222 is about 44857.7888665948. The cubic root of 2012221222 is about 1262.4821361652.

Adding to 2012221222 its reverse (2221222102), we get a palindrome (4233443324).

The spelling of 2012221222 in words is "two billion, twelve million, two hundred twenty-one thousand, two hundred twenty-two".