220033231 has 8 divisors (see below), whose sum is σ = 240395904. Its totient is φ = 199730520.

The previous prime is 220033223. The next prime is 220033259. The reversal of 220033231 is 132330022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220033231 - 2³ = 220033223 is a prime.

It is a super-2 number, since 2×220033231² = 96829245488598722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220033031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7131 + ... + 22156.

It is an arithmetic number, because the mean of its divisors is an integer number (30049488).

Almost surely, 2^220033231 is an apocalyptic number.

220033231 is a deficient number, since it is larger than the sum of its proper divisors (20362673).

220033231 is a wasteful number, since it uses less digits than its factorization.

220033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29981.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 220033231 is about 14833.5171486738. The cubic root of 220033231 is about 603.7114674916.

Adding to 220033231 its reverse (132330022), we get a palindrome (352363253).

The spelling of 220033231 in words is "two hundred twenty million, thirty-three thousand, two hundred thirty-one".