2011220221222 has 16 divisors (see below), whose sum is σ = 3027846341520. Its totient is φ = 1001938943232.

The previous prime is 2011220221193. The next prime is 2011220221259. The reversal of 2011220221222 is 2221220221102.

It is a self number, because there is not a number n which added to its sum of digits gives 2011220221222.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4713498 + ... + 5122450.

It is an arithmetic number, because the mean of its divisors is an integer number (189240396345).

Almost surely, 2^{2011220221222} is an apocalyptic number.

2011220221222 is a deficient number, since it is larger than the sum of its proper divisors (1016626120298).

2011220221222 is a wasteful number, since it uses less digits than its factorization.

2011220221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417927.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2011220221222 its reverse (2221220221102), we get a palindrome (4232440442324).

The spelling of 2011220221222 in words is "two trillion, eleven billion, two hundred twenty million, two hundred twenty-one thousand, two hundred twenty-two".