220134321 has 16 divisors (see below), whose sum is σ = 355773120. Its totient is φ = 133414560.

The previous prime is 220134319. The next prime is 220134353. The reversal of 220134321 is 123431022.

220134321 is a `hidden beast` number, since 220 + 13 + 432 + 1 = 666.

It is not a de Polignac number, because 220134321 - 2¹ = 220134319 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220134294 and 220134303.

It is not an unprimeable number, because it can be changed into a prime (220134221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370300 + ... + 370893.

It is an arithmetic number, because the mean of its divisors is an integer number (22235820).

Almost surely, 2^220134321 is an apocalyptic number.

It is an amenable number.

220134321 is a deficient number, since it is larger than the sum of its proper divisors (135638799).

220134321 is a wasteful number, since it uses less digits than its factorization.

220134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741213 (or 741207 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 220134321 is about 14836.9242432520. The cubic root of 220134321 is about 603.8039078442.

Adding to 220134321 its reverse (123431022), we get a palindrome (343565343).

The spelling of 220134321 in words is "two hundred twenty million, one hundred thirty-four thousand, three hundred twenty-one".