220321003213 has 4 divisors (see below), whose sum is σ = 220353732508. Its totient is φ = 220288273920.

The previous prime is 220321003211. The next prime is 220321003229. The reversal of 220321003213 is 312300123022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 192280496004 + 28040507209 = 438498^2 + 167453^2 .

It is a cyclic number.

It is not a de Polignac number, because 220321003213 - 2¹ = 220321003211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220321003211) 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, 16354548 + ... + 16368013.

It is an arithmetic number, because the mean of its divisors is an integer number (55088433127).

Almost surely, 2^220321003213 is an apocalyptic number.

It is an amenable number.

220321003213 is a deficient number, since it is larger than the sum of its proper divisors (32729295).

220321003213 is an equidigital number, since it uses as much as digits as its factorization.

220321003213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32729294.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 220321003213 its reverse (312300123022), we get a palindrome (532621126235).

The spelling of 220321003213 in words is "two hundred twenty billion, three hundred twenty-one million, three thousand, two hundred thirteen".