1225232325221 has 4 divisors (see below), whose sum is σ = 1237363338444. Its totient is φ = 1213101312000.

The previous prime is 1225232325217. The next prime is 1225232325241.

1225232325221 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 734987294596 + 490245030625 = 857314^2 + 700175^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225232325221 - 2² = 1225232325217 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 (1225232325211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6065506460 + ... + 6065506661.

It is an arithmetic number, because the mean of its divisors is an integer number (309340834611).

Almost surely, 2^{1225232325221} is an apocalyptic number.

It is an amenable number.

1225232325221 is a deficient number, since it is larger than the sum of its proper divisors (12131013223).

1225232325221 is a wasteful number, since it uses less digits than its factorization.

1225232325221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12131013222.

The product of its digits is 28800, while the sum is 32.

The spelling of 1225232325221 in words is "one trillion, two hundred twenty-five billion, two hundred thirty-two million, three hundred twenty-five thousand, two hundred twenty-one".