12102021001105 has 32 divisors (see below), whose sum is σ = 17319785140224. Its totient is φ = 7937211327936.

The previous prime is 12102021001069. The next prime is 12102021001157. The reversal of 12102021001105 is 50110012020121.

It is a cyclic number.

It is not a de Polignac number, because 12102021001105 - 2¹³ = 12102020992913 is a prime.

It is a super-2 number, since 2×12102021001105² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12215694 + ... + 13169176.

It is an arithmetic number, because the mean of its divisors is an integer number (541243285632).

Almost surely, 2^{12102021001105} is an apocalyptic number.

It is an amenable number.

12102021001105 is a deficient number, since it is larger than the sum of its proper divisors (5217764139119).

12102021001105 is a wasteful number, since it uses less digits than its factorization.

12102021001105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969285.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 12102021001105 its reverse (50110012020121), we get a palindrome (62212033021226).

The spelling of 12102021001105 in words is "twelve trillion, one hundred two billion, twenty-one million, one thousand, one hundred five".