12212211021105 has 16 divisors (see below), whose sum is σ = 19540692108864. Its totient is φ = 6512794386240.

The previous prime is 12212211021103. The next prime is 12212211021149. The reversal of 12212211021105 is 50112011221221.

It is not a de Polignac number, because 12212211021105 - 2¹ = 12212211021103 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12212211021103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23789134 + ... + 24297063.

It is an arithmetic number, because the mean of its divisors is an integer number (1221293256804).

Almost surely, 2^{12212211021105} is an apocalyptic number.

12212211021105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12212211021105 is a deficient number, since it is larger than the sum of its proper divisors (7328481087759).

12212211021105 is a wasteful number, since it uses less digits than its factorization.

12212211021105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48103136.

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 12212211021105 its reverse (50112011221221), we get a palindrome (62324222242326).

The spelling of 12212211021105 in words is "twelve trillion, two hundred twelve billion, two hundred eleven million, twenty-one thousand, one hundred five".