12001221003005 has 16 divisors (see below), whose sum is σ = 15514011940224. Its totient is φ = 8859730570560.

The previous prime is 12001221002993. The next prime is 12001221003011. The reversal of 12001221003005 is 50030012210021.

It is a happy number.

12001221003005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12001221003005 - 2¹² = 12001220998909 is a prime.

It is a Duffinian number.

It is a congruent 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, 28010279 + ... + 28435508.

It is an arithmetic number, because the mean of its divisors is an integer number (969625746264).

Almost surely, 2^{12001221003005} is an apocalyptic number.

It is an amenable number.

12001221003005 is a deficient number, since it is larger than the sum of its proper divisors (3512790937219).

12001221003005 is a wasteful number, since it uses less digits than its factorization.

12001221003005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56449076.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 12001221003005 its reverse (50030012210021), we get a palindrome (62031233213026).

The spelling of 12001221003005 in words is "twelve trillion, one billion, two hundred twenty-one million, three thousand, five".