2011121222 has 16 divisors (see below), whose sum is σ = 3314606400. Its totient is φ = 907568040.

The previous prime is 2011121201. The next prime is 2011121269. The reversal of 2011121222 is 2221211102.

It is a junction number, because it is equal to n+sod(n) for n = 2011121197 and 2011121206.

It is a congruent number.

It is an unprimeable number.

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, 325772 + ... + 331887.

It is an arithmetic number, because the mean of its divisors is an integer number (207162900).

Almost surely, 2^2011121222 is an apocalyptic number.

2011121222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2011121222 is a deficient number, since it is larger than the sum of its proper divisors (1303485178).

2011121222 is a wasteful number, since it uses less digits than its factorization.

2011121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657811.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2011121222 is about 44845.5262205719. The cubic root of 2011121222 is about 1262.2520449165.

Adding to 2011121222 its reverse (2221211102), we get a palindrome (4232332324).

The spelling of 2011121222 in words is "two billion, eleven million, one hundred twenty-one thousand, two hundred twenty-two".