12211021112212 has 24 divisors (see below), whose sum is σ = 23024983808456. Its totient is φ = 5632940251008.

The previous prime is 12211021112207. The next prime is 12211021112233. The reversal of 12211021112212 is 21221112011221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3528251316496 + 8682769795716 = 1878364^2 + 2946654^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12211021112212.

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, 60641163 + ... + 60842194.

Almost surely, 2^{12211021112212} is an apocalyptic number.

It is an amenable number.

12211021112212 is a deficient number, since it is larger than the sum of its proper divisors (10813962696244).

12211021112212 is a wasteful number, since it uses less digits than its factorization.

12211021112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121485307 (or 121485305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12211021112212 its reverse (21221112011221), we get a palindrome (33432133123433).

The spelling of 12211021112212 in words is "twelve trillion, two hundred eleven billion, twenty-one million, one hundred twelve thousand, two hundred twelve".