220211233 has 4 divisors (see below), whose sum is σ = 240230448. Its totient is φ = 200192020.

The previous prime is 220211231. The next prime is 220211267. The reversal of 220211233 is 332112022.

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.

It is a cyclic number.

It is not a de Polignac number, because 220211233 - 2¹ = 220211231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220211231) 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, 10009591 + ... + 10009612.

It is an arithmetic number, because the mean of its divisors is an integer number (60057612).

Almost surely, 2^220211233 is an apocalyptic number.

It is an amenable number.

220211233 is a deficient number, since it is larger than the sum of its proper divisors (20019215).

220211233 is a wasteful number, since it uses less digits than its factorization.

220211233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20019214.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 220211233 is about 14839.5159287626. The cubic root of 220211233 is about 603.8742200041.

Adding to 220211233 its reverse (332112022), we get a palindrome (552323255).

The spelling of 220211233 in words is "two hundred twenty million, two hundred eleven thousand, two hundred thirty-three".