12120122221222 has 32 divisors (see below), whose sum is σ = 19193029027200. Its totient is φ = 5724333115200.

The previous prime is 12120122221189. The next prime is 12120122221243. The reversal of 12120122221222 is 22212222102121.

12120122221222 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 = 12120122221193 and 12120122221202.

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, 20777197 + ... + 21352567.

It is an arithmetic number, because the mean of its divisors is an integer number (599782157100).

Almost surely, 2^{12120122221222} is an apocalyptic number.

12120122221222 is a deficient number, since it is larger than the sum of its proper divisors (7072906805978).

12120122221222 is a wasteful number, since it uses less digits than its factorization.

12120122221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577012.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12120122221222 its reverse (22212222102121), we get a palindrome (34332344323343).

The spelling of 12120122221222 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-two".