2245231231521 has 8 divisors (see below), whose sum is σ = 2993648563200. Its totient is φ = 1496817360432.

The previous prime is 2245231231517. The next prime is 2245231231589. The reversal of 2245231231521 is 1251321325422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2245231231521 - 2² = 2245231231517 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2245231231121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2134176 + ... + 3007518.

It is an arithmetic number, because the mean of its divisors is an integer number (374206070400).

Almost surely, 2^{2245231231521} is an apocalyptic number.

It is an amenable number.

2245231231521 is a deficient number, since it is larger than the sum of its proper divisors (748417331679).

2245231231521 is an equidigital number, since it uses as much as digits as its factorization.

2245231231521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730295.

The product of its digits is 28800, while the sum is 33.

Adding to 2245231231521 its reverse (1251321325422), we get a palindrome (3496552556943).

The spelling of 2245231231521 in words is "two trillion, two hundred forty-five billion, two hundred thirty-one million, two hundred thirty-one thousand, five hundred twenty-one".