222534121 has 4 divisors (see below), whose sum is σ = 226732932. Its totient is φ = 218335312.

The previous prime is 222534119. The next prime is 222534127. The reversal of 222534121 is 121435222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 135373225 + 87160896 = 11635^2 + 9336^2 .

It is a cyclic number.

It is not a de Polignac number, because 222534121 - 2¹ = 222534119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222534092 and 222534101.

It is not an unprimeable number, because it can be changed into a prime (222534127) 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, 2099326 + ... + 2099431.

It is an arithmetic number, because the mean of its divisors is an integer number (56683233).

Almost surely, 2^222534121 is an apocalyptic number.

It is an amenable number.

222534121 is a deficient number, since it is larger than the sum of its proper divisors (4198811).

222534121 is an equidigital number, since it uses as much as digits as its factorization.

222534121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198810.

The product of its digits is 960, while the sum is 22.

The square root of 222534121 is about 14917.5775848494. The cubic root of 222534121 is about 605.9901106484.

Adding to 222534121 its reverse (121435222), we get a palindrome (343969343).

The spelling of 222534121 in words is "two hundred twenty-two million, five hundred thirty-four thousand, one hundred twenty-one".