12120221102212 has 12 divisors (see below), whose sum is σ = 21210414485260. Its totient is φ = 6060102677856.

The previous prime is 12120221102201. The next prime is 12120221102221. The reversal of 12120221102212 is 21220112202121.

It can be written as a sum of positive squares in 2 ways, for example, as 10043232839236 + 2076988262976 = 3169106^2 + 1441176^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12120221102212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2754478 + ... + 5641594.

Almost surely, 2^{12120221102212} is an apocalyptic number.

It is an amenable number.

12120221102212 is a deficient number, since it is larger than the sum of its proper divisors (9090193383048).

12120221102212 is a wasteful number, since it uses less digits than its factorization.

12120221102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936630 (or 3936628 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12120221102212 its reverse (21220112202121), we get a palindrome (33340333304333).

The spelling of 12120221102212 in words is "twelve trillion, one hundred twenty billion, two hundred twenty-one million, one hundred two thousand, two hundred twelve".