12221102012012 has 6 divisors (see below), whose sum is σ = 21386928521028. Its totient is φ = 6110551006004.

The previous prime is 12221102011967. The next prime is 12221102012047. The reversal of 12221102012012 is 21021020112221.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527637751498 + ... + 1527637751505.

It is an arithmetic number, because the mean of its divisors is an integer number (3564488086838).

Almost surely, 2^{12221102012012} is an apocalyptic number.

It is an amenable number.

12221102012012 is a deficient number, since it is larger than the sum of its proper divisors (9165826509016).

12221102012012 is a wasteful number, since it uses less digits than its factorization.

12221102012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055275503007 (or 3055275503005 counting only the distinct ones).

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

Adding to 12221102012012 its reverse (21021020112221), we get a palindrome (33242122124233).

The spelling of 12221102012012 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, twelve thousand, twelve".