12021102221012 has 6 divisors (see below), whose sum is σ = 21036928886778. Its totient is φ = 6010551110504.

The previous prime is 12021102220999. The next prime is 12021102221041. The reversal of 12021102221012 is 21012220112021.

It can be written as a sum of positive squares in only one way, i.e., 7674861285316 + 4346240935696 = 2770354^2 + 2084764^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502637777623 + ... + 1502637777630.

It is an arithmetic number, because the mean of its divisors is an integer number (3506154814463).

Almost surely, 2^{12021102221012} is an apocalyptic number.

It is an amenable number.

12021102221012 is a deficient number, since it is larger than the sum of its proper divisors (9015826665766).

12021102221012 is a wasteful number, since it uses less digits than its factorization.

12021102221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005275555257 (or 3005275555255 counting only the distinct ones).

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

Adding to 12021102221012 its reverse (21012220112021), we get a palindrome (33033322333033).

The spelling of 12021102221012 in words is "twelve trillion, twenty-one billion, one hundred two million, two hundred twenty-one thousand, twelve".