1205242336225 has 6 divisors (see below), whose sum is σ = 1494500496950. Its totient is φ = 964193868960.

The previous prime is 1205242336223. The next prime is 1205242336229. The reversal of 1205242336225 is 5226332425021.

It can be written as a sum of positive squares in 3 ways, for example, as 69602575329 + 1135639760896 = 263823^2 + 1065664^2 .

It is not a de Polignac number, because 1205242336225 - 2¹ = 1205242336223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1205242336223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24104846700 + ... + 24104846749.

Almost surely, 2^{1205242336225} is an apocalyptic number.

It is an amenable number.

1205242336225 is a deficient number, since it is larger than the sum of its proper divisors (289258160725).

1205242336225 is an equidigital number, since it uses as much as digits as its factorization.

1205242336225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48209693459 (or 48209693454 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 1205242336225 in words is "one trillion, two hundred five billion, two hundred forty-two million, three hundred thirty-six thousand, two hundred twenty-five".