12211202222012 has 12 divisors (see below), whose sum is σ = 21371686970760. Its totient is φ = 6105005944656.

The previous prime is 12211202221993. The next prime is 12211202222053. The reversal of 12211202222012 is 21022220211221.

It is a super-2 number, since 2×12211202222012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 148745423 + ... + 148827494.

It is an arithmetic number, because the mean of its divisors is an integer number (1780973914230).

Almost surely, 2^{12211202222012} is an apocalyptic number.

It is an amenable number.

12211202222012 is a deficient number, since it is larger than the sum of its proper divisors (9160484748748).

12211202222012 is a wasteful number, since it uses less digits than its factorization.

12211202222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297583180 (or 297583178 counting only the distinct ones).

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

Adding to 12211202222012 its reverse (21022220211221), we get a palindrome (33233422433233).

The spelling of 12211202222012 in words is "twelve trillion, two hundred eleven billion, two hundred two million, two hundred twenty-two thousand, twelve".