12011122222022 has 64 divisors (see below), whose sum is σ = 22527289645056. Its totient is φ = 4666134936960.

The previous prime is 12011122221997. The next prime is 12011122222039. The reversal of 12011122222022 is 22022222111021.

It is a junction number, because it is equal to n+sod(n) for n = 12011122221985 and 12011122222003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 438396428 + ... + 438423824.

It is an arithmetic number, because the mean of its divisors is an integer number (351988900704).

Almost surely, 2^{12011122222022} is an apocalyptic number.

12011122222022 is a deficient number, since it is larger than the sum of its proper divisors (10516167423034).

12011122222022 is a wasteful number, since it uses less digits than its factorization.

12011122222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35541.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12011122222022 its reverse (22022222111021), we get a palindrome (34033344333043).

The spelling of 12011122222022 in words is "twelve trillion, eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, twenty-two".