12000122021105 has 4 divisors (see below), whose sum is σ = 14400146425332. Its totient is φ = 9600097616880.

The previous prime is 12000122021087. The next prime is 12000122021131. The reversal of 12000122021105 is 50112022100021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1270507700224 + 10729614320881 = 1127168^2 + 3275609^2 .

It is not a de Polignac number, because 12000122021105 - 2⁸ = 12000122020849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200012202106 + ... + 1200012202115.

It is an arithmetic number, because the mean of its divisors is an integer number (3600036606333).

Almost surely, 2^{12000122021105} is an apocalyptic number.

It is an amenable number.

12000122021105 is a deficient number, since it is larger than the sum of its proper divisors (2400024404227).

12000122021105 is an equidigital number, since it uses as much as digits as its factorization.

12000122021105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400024404226.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 12000122021105 its reverse (50112022100021), we get a palindrome (62112144121126).

The spelling of 12000122021105 in words is "twelve trillion, one hundred twenty-two million, twenty-one thousand, one hundred five".