220312051 has 2 divisors, whose sum is σ = 220312052. Its totient is φ = 220312050.

The previous prime is 220312039. The next prime is 220312067. The reversal of 220312051 is 150213022.

It is an a-pointer prime, because the next prime (220312067) can be obtained adding 220312051 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220312051 - 2⁵ = 220312019 is a prime.

It is not a weakly prime, because it can be changed into another prime (220312031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110156025 + 110156026.

It is an arithmetic number, because the mean of its divisors is an integer number (110156026).

Almost surely, 2^220312051 is an apocalyptic number.

220312051 is a deficient number, since it is larger than the sum of its proper divisors (1).

220312051 is an equidigital number, since it uses as much as digits as its factorization.

220312051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 220312051 is about 14842.9124837412. The cubic root of 220312051 is about 603.9663619923.

Adding to 220312051 its reverse (150213022), we get a palindrome (370525073).

The spelling of 220312051 in words is "two hundred twenty million, three hundred twelve thousand, fifty-one".