222438851 has 2 divisors, whose sum is σ = 222438852. Its totient is φ = 222438850.

The previous prime is 222438847. The next prime is 222438859. The reversal of 222438851 is 158834222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222438851 - 2² = 222438847 is a prime.

It is not a weakly prime, because it can be changed into another prime (222438859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111219425 + 111219426.

It is an arithmetic number, because the mean of its divisors is an integer number (111219426).

Almost surely, 2^222438851 is an apocalyptic number.

222438851 is a deficient number, since it is larger than the sum of its proper divisors (1).

222438851 is an equidigital number, since it uses as much as digits as its factorization.

222438851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30720, while the sum is 35.

The square root of 222438851 is about 14914.3840301905. The cubic root of 222438851 is about 605.9036206631.

The spelling of 222438851 in words is "two hundred twenty-two million, four hundred thirty-eight thousand, eight hundred fifty-one".