225675716221 has 16 divisors (see below), whose sum is σ = 235334784960. Its totient is φ = 216143141760.

The previous prime is 225675716219. The next prime is 225675716243. The reversal of 225675716221 is 122617576522.

225675716221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 225675716221 - 2¹ = 225675716219 is a prime.

It is a super-2 number, since 2×225675716221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225675716281) 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 15 ways as a sum of consecutive naturals, for example, 10638001 + ... + 10659193.

It is an arithmetic number, because the mean of its divisors is an integer number (14708424060).

Almost surely, 2^225675716221 is an apocalyptic number.

It is an amenable number.

225675716221 is a deficient number, since it is larger than the sum of its proper divisors (9659068739).

225675716221 is a wasteful number, since it uses less digits than its factorization.

225675716221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24156.

The product of its digits is 705600, while the sum is 46.

The spelling of 225675716221 in words is "two hundred twenty-five billion, six hundred seventy-five million, seven hundred sixteen thousand, two hundred twenty-one".