2011221123222 has 16 divisors (see below), whose sum is σ = 4022920128960. Its totient is φ = 670327393992.

The previous prime is 2011221123221. The next prime is 2011221123227. The reversal of 2011221123222 is 2223211221102.

It is a super-2 number, since 2×2011221123222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011221123221) 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 7 ways as a sum of consecutive naturals, for example, 19857048 + ... + 19958075.

It is an arithmetic number, because the mean of its divisors is an integer number (251432508060).

Almost surely, 2^{2011221123222} is an apocalyptic number.

2011221123222 is an abundant number, since it is smaller than the sum of its proper divisors (2011699005738).

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

2011221123222 is a wasteful number, since it uses less digits than its factorization.

2011221123222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39823547.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2011221123222 its reverse (2223211221102), we get a palindrome (4234432344324).

The spelling of 2011221123222 in words is "two trillion, eleven billion, two hundred twenty-one million, one hundred twenty-three thousand, two hundred twenty-two".