12011212220012 has 24 divisors (see below), whose sum is σ = 21025110310512. Its totient is φ = 6004038081600.

The previous prime is 12011212219997. The next prime is 12011212220017. The reversal of 12011212220012 is 21002221211021.

It is not an unprimeable number, because it can be changed into a prime (12011212220017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285545462 + ... + 285587522.

It is an arithmetic number, because the mean of its divisors is an integer number (876046262938).

Almost surely, 2^{12011212220012} is an apocalyptic number.

It is an amenable number.

12011212220012 is a deficient number, since it is larger than the sum of its proper divisors (9013898090500).

12011212220012 is a wasteful number, since it uses less digits than its factorization.

12011212220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59009 (or 59007 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12011212220012 its reverse (21002221211021), we get a palindrome (33013433431033).

The spelling of 12011212220012 in words is "twelve trillion, eleven billion, two hundred twelve million, two hundred twenty thousand, twelve".