220321122213 has 4 divisors (see below), whose sum is σ = 293761496288. Its totient is φ = 146880748140.

The previous prime is 220321122211. The next prime is 220321122223. The reversal of 220321122213 is 312221123022.

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 not a de Polignac number, because 220321122213 - 2¹ = 220321122211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220321122213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220321122211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36720187033 + ... + 36720187038.

It is an arithmetic number, because the mean of its divisors is an integer number (73440374072).

Almost surely, 2^220321122213 is an apocalyptic number.

It is an amenable number.

220321122213 is a deficient number, since it is larger than the sum of its proper divisors (73440374075).

220321122213 is an equidigital number, since it uses as much as digits as its factorization.

220321122213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73440374074.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 220321122213 its reverse (312221123022), we get a palindrome (532542245235).

The spelling of 220321122213 in words is "two hundred twenty billion, three hundred twenty-one million, one hundred twenty-two thousand, two hundred thirteen".