220111013 has 4 divisors (see below), whose sum is σ = 223396320. Its totient is φ = 216825708.

The previous prime is 220110967. The next prime is 220111027. The reversal of 220111013 is 310111022.

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 220111013 - 2¹⁶ = 220045477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220110985 and 220111003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111033) 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, 1642553 + ... + 1642686.

It is an arithmetic number, because the mean of its divisors is an integer number (55849080).

Almost surely, 2^220111013 is an apocalyptic number.

It is an amenable number.

220111013 is a deficient number, since it is larger than the sum of its proper divisors (3285307).

220111013 is an equidigital number, since it uses as much as digits as its factorization.

220111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285306.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 220111013 is about 14836.1387496882. The cubic root of 220111013 is about 603.7825966766.

Adding to 220111013 its reverse (310111022), we get a palindrome (530222035).

Subtracting 220111013 from its reverse (310111022), we obtain a palindrome (90000009).

The spelling of 220111013 in words is "two hundred twenty million, one hundred eleven thousand, thirteen".