12011222111222 has 32 divisors (see below), whose sum is σ = 19039576780800. Its totient is φ = 5671357499808.

The previous prime is 12011222111191. The next prime is 12011222111249. The reversal of 12011222111222 is 22211122211021.

12011222111222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12011222111194 and 12011222111203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51337088 + ... + 51570524.

It is an arithmetic number, because the mean of its divisors is an integer number (594986774400).

Almost surely, 2^{12011222111222} is an apocalyptic number.

12011222111222 is a deficient number, since it is larger than the sum of its proper divisors (7028354669578).

12011222111222 is a wasteful number, since it uses less digits than its factorization.

12011222111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247700.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12011222111222 its reverse (22211122211021), we get a palindrome (34222344322243).

The spelling of 12011222111222 in words is "twelve trillion, eleven billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twenty-two".