2011122201222 has 12 divisors (see below), whose sum is σ = 4357431436020. Its totient is φ = 670374067068.

The previous prime is 2011122201203. The next prime is 2011122201239. The reversal of 2011122201222 is 2221022211102.

It is a happy number.

It is a super-3 number, since 3×2011122201222³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 111729011179 = 2011122201222 / (2 + 0 + 1 + 1 + 1 + 2 + 2 + 2 + 0 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2011122201195 and 2011122201204.

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 5 ways as a sum of consecutive naturals, for example, 55864505572 + ... + 55864505607.

It is an arithmetic number, because the mean of its divisors is an integer number (363119286335).

Almost surely, 2^{2011122201222} is an apocalyptic number.

2011122201222 is an abundant number, since it is smaller than the sum of its proper divisors (2346309234798).

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

2011122201222 is a wasteful number, since it uses less digits than its factorization.

2011122201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111729011187 (or 111729011184 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2011122201222 its reverse (2221022211102), we get a palindrome (4232144412324).

The spelling of 2011122201222 in words is "two trillion, eleven billion, one hundred twenty-two million, two hundred one thousand, two hundred twenty-two".