222505533 has 12 divisors (see below), whose sum is σ = 325800540. Its totient is φ = 146304576.

The previous prime is 222505511. The next prime is 222505541. The reversal of 222505533 is 335505222.

222505533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38713284 + 183792249 = 6222^2 + 13557^2 .

It is not a de Polignac number, because 222505533 - 2⁹ = 222505021 is a prime.

It is a super-2 number, since 2×222505533² = 99017424431228178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222505497 and 222505506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222505553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168678 + ... + 169991.

It is an arithmetic number, because the mean of its divisors is an integer number (27150045).

Almost surely, 2^222505533 is an apocalyptic number.

It is an amenable number.

222505533 is a deficient number, since it is larger than the sum of its proper divisors (103295007).

222505533 is a wasteful number, since it uses less digits than its factorization.

222505533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338748 (or 338745 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 222505533 is about 14916.6193556047. The cubic root of 222505533 is about 605.9641598906.

The spelling of 222505533 in words is "two hundred twenty-two million, five hundred five thousand, five hundred thirty-three".