412220251 has 2 divisors, whose sum is σ = 412220252. Its totient is φ = 412220250.

The previous prime is 412220243. The next prime is 412220323. The reversal of 412220251 is 152022214.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 412220251 - 2³ = 412220243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (412220951) 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, 206110125 + 206110126.

It is an arithmetic number, because the mean of its divisors is an integer number (206110126).

Almost surely, 2^412220251 is an apocalyptic number.

412220251 is a deficient number, since it is larger than the sum of its proper divisors (1).

412220251 is an equidigital number, since it uses as much as digits as its factorization.

412220251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 412220251 is about 20303.2078992459. The cubic root of 412220251 is about 744.2344588801.

Adding to 412220251 its reverse (152022214), we get a palindrome (564242465).

The spelling of 412220251 in words is "four hundred twelve million, two hundred twenty thousand, two hundred fifty-one".