220232011 has 4 divisors (see below), whose sum is σ = 220670352. Its totient is φ = 219793672.

The previous prime is 220232009. The next prime is 220232041. The reversal of 220232011 is 110232022.

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

It is a cyclic number.

It is not a de Polignac number, because 220232011 - 2¹ = 220232009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220231982 and 220232000.

It is not an unprimeable number, because it can be changed into a prime (220232041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218416 + ... + 219421.

It is an arithmetic number, because the mean of its divisors is an integer number (55167588).

Almost surely, 2^220232011 is an apocalyptic number.

220232011 is a deficient number, since it is larger than the sum of its proper divisors (438341).

220232011 is an equidigital number, since it uses as much as digits as its factorization.

220232011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438340.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 220232011 is about 14840.2160024711. The cubic root of 220232011 is about 603.8932122292.

Adding to 220232011 its reverse (110232022), we get a palindrome (330464033).

The spelling of 220232011 in words is "two hundred twenty million, two hundred thirty-two thousand, eleven".