220320002251 has 2 divisors, whose sum is σ = 220320002252. Its totient is φ = 220320002250.

The previous prime is 220320002237. The next prime is 220320002291. The reversal of 220320002251 is 152200023022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220320002251 - 2²¹ = 220317905099 is a prime.

It is not a weakly prime, because it can be changed into another prime (220320002291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110160001125 + 110160001126.

It is an arithmetic number, because the mean of its divisors is an integer number (110160001126).

Almost surely, 2^220320002251 is an apocalyptic number.

220320002251 is a deficient number, since it is larger than the sum of its proper divisors (1).

220320002251 is an equidigital number, since it uses as much as digits as its factorization.

220320002251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 220320002251 its reverse (152200023022), we get a palindrome (372520025273).

The spelling of 220320002251 in words is "two hundred twenty billion, three hundred twenty million, two thousand, two hundred fifty-one".