12345505041211 has 4 divisors (see below), whose sum is σ = 12345690245112. Its totient is φ = 12345319837312.

The previous prime is 12345505041197. The next prime is 12345505041217. The reversal of 12345505041211 is 11214050554321.

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

It is a cyclic number.

It is not a de Polignac number, because 12345505041211 - 2⁷ = 12345505041083 is a prime.

It is a super-2 number, since 2×12345505041211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12345505041217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92501926 + ... + 92635291.

It is an arithmetic number, because the mean of its divisors is an integer number (3086422561278).

Almost surely, 2^{12345505041211} is an apocalyptic number.

12345505041211 is a deficient number, since it is larger than the sum of its proper divisors (185203901).

12345505041211 is an equidigital number, since it uses as much as digits as its factorization.

12345505041211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185203900.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 12345505041211 its reverse (11214050554321), we get a palindrome (23559555595532).

The spelling of 12345505041211 in words is "twelve trillion, three hundred forty-five billion, five hundred five million, forty-one thousand, two hundred eleven".