225053312222021 has 8 divisors (see below), whose sum is σ = 225125066227800. Its totient is φ = 224981560530432.

The previous prime is 225053312222017. The next prime is 225053312222047. The reversal of 225053312222021 is 120222213350522.

It can be written as a sum of positive squares in 4 ways, for example, as 178026442449025 + 47026869772996 = 13342655^2 + 6857614^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 225053312222021 - 2² = 225053312222017 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 (225053312222071) 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, 205632155 + ... + 206723703.

It is an arithmetic number, because the mean of its divisors is an integer number (28140633278475).

Almost surely, 2^{225053312222021} is an apocalyptic number.

It is an amenable number.

225053312222021 is a deficient number, since it is larger than the sum of its proper divisors (71754005779).

225053312222021 is a wasteful number, since it uses less digits than its factorization.

225053312222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157095.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 225053312222021 its reverse (120222213350522), we get a palindrome (345275525572543).

The spelling of 225053312222021 in words is "two hundred twenty-five trillion, fifty-three billion, three hundred twelve million, two hundred twenty-two thousand, twenty-one".