2011221002222 has 16 divisors (see below), whose sum is σ = 3066535327392. Its totient is φ = 989045221920.

The previous prime is 2011221002213. The next prime is 2011221002227. The reversal of 2011221002222 is 2222001221102.

It is a happy number.

It is a super-2 number, since 2×2011221002222² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011221002222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011221002227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866108 + ... + 2184624.

It is an arithmetic number, because the mean of its divisors is an integer number (191658457962).

Almost surely, 2^{2011221002222} is an apocalyptic number.

2011221002222 is a deficient number, since it is larger than the sum of its proper divisors (1055314325170).

2011221002222 is a wasteful number, since it uses less digits than its factorization.

2011221002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331083.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2011221002222 its reverse (2222001221102), we get a palindrome (4233222223324).

The spelling of 2011221002222 in words is "two trillion, eleven billion, two hundred twenty-one million, two thousand, two hundred twenty-two".