12211210233112 has 64 divisors (see below), whose sum is σ = 25481978697600. Its totient is φ = 5439039440640.

The previous prime is 12211210233073. The next prime is 12211210233179. The reversal of 12211210233112 is 21133201211221.

It is a happy number.

It is a super-2 number, since 2×12211210233112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2131978 + ... + 5382169.

It is an arithmetic number, because the mean of its divisors is an integer number (398155917150).

Almost surely, 2^{12211210233112} is an apocalyptic number.

It is an amenable number.

12211210233112 is an abundant number, since it is smaller than the sum of its proper divisors (13270768464488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211210233112 is a wasteful number, since it uses less digits than its factorization.

12211210233112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7514536 (or 7514532 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12211210233112 its reverse (21133201211221), we get a palindrome (33344411444333).

The spelling of 12211210233112 in words is "twelve trillion, two hundred eleven billion, two hundred ten million, two hundred thirty-three thousand, one hundred twelve".