221413240021575 has 48 divisors (see below), whose sum is σ = 421136221953536. Its totient is φ = 100547166672000.

The previous prime is 221413240021517. The next prime is 221413240021577. The reversal of 221413240021575 is 575120042314122.

It is not a de Polignac number, because 221413240021575 - 2¹¹ = 221413240019527 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 (221413240021577) 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 47 ways as a sum of consecutive naturals, for example, 1396409152 + ... + 1396567701.

Almost surely, 2^{221413240021575} is an apocalyptic number.

221413240021575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

221413240021575 is a deficient number, since it is larger than the sum of its proper divisors (199722981931961).

221413240021575 is a wasteful number, since it uses less digits than its factorization.

221413240021575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792977024 (or 2792977019 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

Adding to 221413240021575 its reverse (575120042314122), we get a palindrome (796533282335697).

The spelling of 221413240021575 in words is "two hundred twenty-one trillion, four hundred thirteen billion, two hundred forty million, twenty-one thousand, five hundred seventy-five".