222231533 has 4 divisors (see below), whose sum is σ = 222261468. Its totient is φ = 222201600.

The previous prime is 222231511. The next prime is 222231551. The reversal of 222231533 is 335132222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 172712164 + 49519369 = 13142^2 + 7037^2 .

It is a cyclic number.

It is not a de Polignac number, because 222231533 - 2¹⁶ = 222165997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222231499 and 222231508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222231433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5483 + ... + 21783.

It is an arithmetic number, because the mean of its divisors is an integer number (55565367).

Almost surely, 2^222231533 is an apocalyptic number.

It is an amenable number.

222231533 is a deficient number, since it is larger than the sum of its proper divisors (29935).

222231533 is a wasteful number, since it uses less digits than its factorization.

222231533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29934.

The product of its digits is 2160, while the sum is 23.

The square root of 222231533 is about 14907.4321397080. The cubic root of 222231533 is about 605.7153235623.

Adding to 222231533 its reverse (335132222), we get a palindrome (557363755).

The spelling of 222231533 in words is "two hundred twenty-two million, two hundred thirty-one thousand, five hundred thirty-three".