222134321 has 4 divisors (see below), whose sum is σ = 222280944. Its totient is φ = 221987700.

The previous prime is 222134317. The next prime is 222134323. The reversal of 222134321 is 123431222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123431222 = 2 ⋅61715611.

It is a cyclic number.

It is not a de Polignac number, because 222134321 - 2² = 222134317 is a prime.

It is a super-2 number, since 2×222134321² = 98687313132262082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222134293 and 222134302.

It is not an unprimeable number, because it can be changed into a prime (222134323) 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, 71015 + ... + 74076.

It is an arithmetic number, because the mean of its divisors is an integer number (55570236).

Almost surely, 2^222134321 is an apocalyptic number.

It is an amenable number.

222134321 is a deficient number, since it is larger than the sum of its proper divisors (146623).

222134321 is a wasteful number, since it uses less digits than its factorization.

222134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146622.

The product of its digits is 576, while the sum is 20.

The square root of 222134321 is about 14904.1712617643. The cubic root of 222134321 is about 605.6269901844.

Adding to 222134321 its reverse (123431222), we get a palindrome (345565543).

The spelling of 222134321 in words is "two hundred twenty-two million, one hundred thirty-four thousand, three hundred twenty-one".