220430051 has 2 divisors, whose sum is σ = 220430052. Its totient is φ = 220430050.

The previous prime is 220430033. The next prime is 220430099. The reversal of 220430051 is 150034022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220430051 is a prime.

It is not a weakly prime, because it can be changed into another prime (220430011) 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, 110215025 + 110215026.

It is an arithmetic number, because the mean of its divisors is an integer number (110215026).

Almost surely, 2^220430051 is an apocalyptic number.

220430051 is a deficient number, since it is larger than the sum of its proper divisors (1).

220430051 is an equidigital number, since it uses as much as digits as its factorization.

220430051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 220430051 is about 14846.8869127504. The cubic root of 220430051 is about 604.0741716655.

Adding to 220430051 its reverse (150034022), we get a palindrome (370464073).

The spelling of 220430051 in words is "two hundred twenty million, four hundred thirty thousand, fifty-one".