12201420005 has 4 divisors (see below), whose sum is σ = 14641704012. Its totient is φ = 9761136000.

The previous prime is 12201420001. The next prime is 12201420043. The reversal of 12201420005 is 50002410221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50002410221 = 41 ⋅1219570981.

It can be written as a sum of positive squares in 2 ways, for example, as 4321484644 + 7879935361 = 65738^2 + 88769^2 .

It is not a de Polignac number, because 12201420005 - 2² = 12201420001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201420001) 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, 1220141996 + ... + 1220142005.

It is an arithmetic number, because the mean of its divisors is an integer number (3660426003).

Almost surely, 2^12201420005 is an apocalyptic number.

It is an amenable number.

12201420005 is a deficient number, since it is larger than the sum of its proper divisors (2440284007).

12201420005 is an equidigital number, since it uses as much as digits as its factorization.

12201420005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440284006.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 12201420005 its reverse (50002410221), we get a palindrome (62203830226).

The spelling of 12201420005 in words is "twelve billion, two hundred one million, four hundred twenty thousand, five".