220111103213 has 6 divisors (see below), whose sum is σ = 225610609002. Its totient is φ = 214742538080.

The previous prime is 220111103209. The next prime is 220111103221. The reversal of 220111103213 is 312301111022.

It can be written as a sum of positive squares in 3 ways, for example, as 3851691844 + 216259411369 = 62062^2 + 465037^2 .

It is not a de Polignac number, because 220111103213 - 2² = 220111103209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220111103191 and 220111103200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111102213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65468606 + ... + 65471967.

It is an arithmetic number, because the mean of its divisors is an integer number (37601768167).

Almost surely, 2^220111103213 is an apocalyptic number.

It is an amenable number.

220111103213 is a deficient number, since it is larger than the sum of its proper divisors (5499505789).

220111103213 is an equidigital number, since it uses as much as digits as its factorization.

220111103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130940655 (or 130940614 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 220111103213 its reverse (312301111022), we get a palindrome (532412214235).

The spelling of 220111103213 in words is "two hundred twenty billion, one hundred eleven million, one hundred three thousand, two hundred thirteen".