222530851 has 2 divisors, whose sum is σ = 222530852. Its totient is φ = 222530850.

The previous prime is 222530849. The next prime is 222530899. The reversal of 222530851 is 158035222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222530851 - 2¹ = 222530849 is a prime.

Together with 222530849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (222530251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111265425 + 111265426.

It is an arithmetic number, because the mean of its divisors is an integer number (111265426).

Almost surely, 2^222530851 is an apocalyptic number.

222530851 is a deficient number, since it is larger than the sum of its proper divisors (1).

222530851 is an equidigital number, since it uses as much as digits as its factorization.

222530851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 222530851 is about 14917.4679822013. The cubic root of 222530851 is about 605.9871424184.

The spelling of 222530851 in words is "two hundred twenty-two million, five hundred thirty thousand, eight hundred fifty-one".