222481379 has 2 divisors, whose sum is σ = 222481380. Its totient is φ = 222481378.

The previous prime is 222481373. The next prime is 222481387. The reversal of 222481379 is 973184222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222481379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222481373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111240689 + 111240690.

It is an arithmetic number, because the mean of its divisors is an integer number (111240690).

Almost surely, 2^222481379 is an apocalyptic number.

222481379 is a deficient number, since it is larger than the sum of its proper divisors (1).

222481379 is an equidigital number, since it uses as much as digits as its factorization.

222481379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 222481379 is about 14915.8096997783. The cubic root of 222481379 is about 605.9422323641.

The spelling of 222481379 in words is "two hundred twenty-two million, four hundred eighty-one thousand, three hundred seventy-nine".