12011022022222 has 4 divisors (see below), whose sum is σ = 18016533033336. Its totient is φ = 6005511011110.

The previous prime is 12011022022211. The next prime is 12011022022267. The reversal of 12011022022222 is 22222022011021.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12011022022222.

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 as a sum of consecutive naturals, namely, 3002755505554 + ... + 3002755505557.

It is an arithmetic number, because the mean of its divisors is an integer number (4504133258334).

Almost surely, 2^{12011022022222} is an apocalyptic number.

12011022022222 is a deficient number, since it is larger than the sum of its proper divisors (6005511011114).

12011022022222 is an equidigital number, since it uses as much as digits as its factorization.

12011022022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005511011113.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12011022022222 its reverse (22222022011021), we get a palindrome (34233044033243).

The spelling of 12011022022222 in words is "twelve trillion, eleven billion, twenty-two million, twenty-two thousand, two hundred twenty-two".