12120211222 has 16 divisors (see below), whose sum is σ = 21493971360. Its totient is φ = 5015259648.

The previous prime is 12120211189. The next prime is 12120211237. The reversal of 12120211222 is 22211202121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12120211196 and 12120211205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14925963 + ... + 14926774.

It is an arithmetic number, because the mean of its divisors is an integer number (1343373210).

Almost surely, 2^12120211222 is an apocalyptic number.

12120211222 is a deficient number, since it is larger than the sum of its proper divisors (9373760138).

12120211222 is a wasteful number, since it uses less digits than its factorization.

12120211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29852775.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12120211222 its reverse (22211202121), we get a palindrome (34331413343).

The spelling of 12120211222 in words is "twelve billion, one hundred twenty million, two hundred eleven thousand, two hundred twenty-two".