221525041230723 has 8 divisors (see below), whose sum is σ = 295495534001488. Its totient is φ = 147618954640224.

The previous prime is 221525041230719. The next prime is 221525041230767. The reversal of 221525041230723 is 327032140525122.

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

It is not a de Polignac number, because 221525041230723 - 2² = 221525041230719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221525041230323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16101537040 + ... + 16101550797.

It is an arithmetic number, because the mean of its divisors is an integer number (36936941750186).

Almost surely, 2^{221525041230723} is an apocalyptic number.

221525041230723 is a deficient number, since it is larger than the sum of its proper divisors (73970492770765).

221525041230723 is a wasteful number, since it uses less digits than its factorization.

221525041230723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32203090133.

The product of its (nonzero) digits is 201600, while the sum is 39.

Adding to 221525041230723 its reverse (327032140525122), we get a palindrome (548557181755845).

The spelling of 221525041230723 in words is "two hundred twenty-one trillion, five hundred twenty-five billion, forty-one million, two hundred thirty thousand, seven hundred twenty-three".