12021022220012 has 48 divisors (see below), whose sum is σ = 23026433740800. Its totient is φ = 5457719891520.

The previous prime is 12021022220003. The next prime is 12021022220033. The reversal of 12021022220012 is 21002222012021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4285712 + ... + 6512247.

It is an arithmetic number, because the mean of its divisors is an integer number (479717369600).

Almost surely, 2^{12021022220012} is an apocalyptic number.

It is an amenable number.

12021022220012 is a deficient number, since it is larger than the sum of its proper divisors (11005411520788).

12021022220012 is a wasteful number, since it uses less digits than its factorization.

12021022220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10798326 (or 10798324 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12021022220012 its reverse (21002222012021), we get a palindrome (33023244232033).

The spelling of 12021022220012 in words is "twelve trillion, twenty-one billion, twenty-two million, two hundred twenty thousand, twelve".