220231100213 has 2 divisors, whose sum is σ = 220231100214. Its totient is φ = 220231100212.

The previous prime is 220231100197. The next prime is 220231100227. The reversal of 220231100213 is 312001132022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165126824164 + 55104276049 = 406358^2 + 234743^2 .

It is a cyclic number.

It is not a de Polignac number, because 220231100213 - 2⁴ = 220231100197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220231100191 and 220231100200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220231300213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110115550106 + 110115550107.

It is an arithmetic number, because the mean of its divisors is an integer number (110115550107).

Almost surely, 2^220231100213 is an apocalyptic number.

It is an amenable number.

220231100213 is a deficient number, since it is larger than the sum of its proper divisors (1).

220231100213 is an equidigital number, since it uses as much as digits as its factorization.

220231100213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 220231100213 its reverse (312001132022), we get a palindrome (532232232235).

The spelling of 220231100213 in words is "two hundred twenty billion, two hundred thirty-one million, one hundred thousand, two hundred thirteen".