220518502213 has 2 divisors, whose sum is σ = 220518502214. Its totient is φ = 220518502212.

The previous prime is 220518502181. The next prime is 220518502229. The reversal of 220518502213 is 312205815022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203394686049 + 17123816164 = 450993^2 + 130858^2 .

It is a cyclic number.

It is not a de Polignac number, because 220518502213 - 2⁵ = 220518502181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220518502513) 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 as a sum of consecutive naturals, namely, 110259251106 + 110259251107.

It is an arithmetic number, because the mean of its divisors is an integer number (110259251107).

Almost surely, 2^220518502213 is an apocalyptic number.

It is an amenable number.

220518502213 is a deficient number, since it is larger than the sum of its proper divisors (1).

220518502213 is an equidigital number, since it uses as much as digits as its factorization.

220518502213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 220518502213 in words is "two hundred twenty billion, five hundred eighteen million, five hundred two thousand, two hundred thirteen".