221525041230712 has 8 divisors (see below), whose sum is σ = 415359452307600. Its totient is φ = 110762520615352.

The previous prime is 221525041230673. The next prime is 221525041230719. The reversal of 221525041230712 is 217032140525122.

221525041230712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×221525041230712² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221525041230719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13845315076912 + ... + 13845315076927.

It is an arithmetic number, because the mean of its divisors is an integer number (51919931538450).

Almost surely, 2^{221525041230712} is an apocalyptic number.

It is an amenable number.

221525041230712 is a deficient number, since it is larger than the sum of its proper divisors (193834411076888).

221525041230712 is a wasteful number, since it uses less digits than its factorization.

221525041230712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27690630153845 (or 27690630153841 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

Adding to 221525041230712 its reverse (217032140525122), we get a palindrome (438557181755834).

The spelling of 221525041230712 in words is "two hundred twenty-one trillion, five hundred twenty-five billion, forty-one million, two hundred thirty thousand, seven hundred twelve".