12212102222012 has 192 divisors, whose sum is σ = 28574108881920. Its totient is φ = 4420750540800.

The previous prime is 12212102222003. The next prime is 12212102222027. The reversal of 12212102222012 is 21022220121221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 298688123 + ... + 298729005.

It is an arithmetic number, because the mean of its divisors is an integer number (148823483760).

Almost surely, 2^{12212102222012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212102222012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14287054440960).

12212102222012 is an abundant number, since it is smaller than the sum of its proper divisors (16362006659908).

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

12212102222012 is a wasteful number, since it uses less digits than its factorization.

12212102222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41652 (or 41650 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12212102222012 its reverse (21022220121221), we get a palindrome (33234322343233).

The spelling of 12212102222012 in words is "twelve trillion, two hundred twelve billion, one hundred two million, two hundred twenty-two thousand, twelve".