245042300232221 has 4 divisors (see below), whose sum is σ = 245115251203200. Its totient is φ = 244969349261244.

The previous prime is 245042300232209. The next prime is 245042300232253. The reversal of 245042300232221 is 122232003240542.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245042300232221 - 2⁴² = 240644253721117 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 (245042300832221) 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, 36475480451 + ... + 36475487168.

It is an arithmetic number, because the mean of its divisors is an integer number (61278812800800).

Almost surely, 2^{245042300232221} is an apocalyptic number.

It is an amenable number.

245042300232221 is a deficient number, since it is larger than the sum of its proper divisors (72950970979).

245042300232221 is an equidigital number, since it uses as much as digits as its factorization.

245042300232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72950970978.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 245042300232221 its reverse (122232003240542), we get a palindrome (367274303472763).

The spelling of 245042300232221 in words is "two hundred forty-five trillion, forty-two billion, three hundred million, two hundred thirty-two thousand, two hundred twenty-one".