12221200021012 has 12 divisors (see below), whose sum is σ = 21403513783456. Its totient is φ = 6105910368600.

The previous prime is 12221200020979. The next prime is 12221200021057. The reversal of 12221200021012 is 21012000212221.

It is a happy number.

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, 1172404614 + ... + 1172415037.

Almost surely, 2^{12221200021012} is an apocalyptic number.

It is an amenable number.

12221200021012 is a deficient number, since it is larger than the sum of its proper divisors (9182313762444).

12221200021012 is a wasteful number, since it uses less digits than its factorization.

12221200021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344820958 (or 2344820956 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12221200021012 its reverse (21012000212221), we get a palindrome (33233200233233).

The spelling of 12221200021012 in words is "twelve trillion, two hundred twenty-one billion, two hundred million, twenty-one thousand, twelve".