220011 has 16 divisors (see below), whose sum is σ = 328320. Its totient is φ = 129920.

The previous prime is 220009. The next prime is 220013. The reversal of 220011 is 110022.

It is a happy number.

220011 is nontrivially palindromic in base 2.

It is an interprime number because it is at equal distance from previous prime (220009) and next prime (220013).

It is a cyclic number.

It is not a de Polignac number, because 220011 - 2¹ = 220009 is a prime.

It is a nialpdrome in base 8.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (220013) 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, 1891 + ... + 2003.

It is an arithmetic number, because the mean of its divisors is an integer number (20520).

2²²⁰⁰¹¹ is an apocalyptic number.

220011 is a deficient number, since it is larger than the sum of its proper divisors (108309).

220011 is a wasteful number, since it uses less digits than its factorization.

220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 220011 is about 469.0533018752. The cubic root of 220011 is about 60.3691134863.

Adding to 220011 its reverse (110022), we get a palindrome (330033).

It can be divided in two parts, 2200 and 11, that added together give a triangular number (2211 = T₆₆).

The spelling of 220011 in words is "two hundred twenty thousand, eleven", and thus it is an iban number.