245112224012221 has 16 divisors (see below), whose sum is σ = 252406046756160. Its totient is φ = 237854455413120.

The previous prime is 245112224012203. The next prime is 245112224012251. The reversal of 245112224012221 is 122210422211542.

It is a cyclic number.

It is not a de Polignac number, because 245112224012221 - 2²⁵ = 245112190457789 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 (245112224012251) 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, 15347625 + ... + 26940193.

It is an arithmetic number, because the mean of its divisors is an integer number (15775377922260).

Almost surely, 2^{245112224012221} is an apocalyptic number.

It is an amenable number.

245112224012221 is a deficient number, since it is larger than the sum of its proper divisors (7293822743939).

245112224012221 is a wasteful number, since it uses less digits than its factorization.

245112224012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11594124.

The product of its (nonzero) digits is 10240, while the sum is 31.

Adding to 245112224012221 its reverse (122210422211542), we get a palindrome (367322646223763).

The spelling of 245112224012221 in words is "two hundred forty-five trillion, one hundred twelve billion, two hundred twenty-four million, twelve thousand, two hundred twenty-one".