222474281 has 2 divisors, whose sum is σ = 222474282. Its totient is φ = 222474280.

The previous prime is 222474271. The next prime is 222474313. The reversal of 222474281 is 182474222.

It is an a-pointer prime, because the next prime (222474313) can be obtained adding 222474281 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205664281 + 16810000 = 14341^2 + 4100^2 .

It is a cyclic number.

It is not a de Polignac number, because 222474281 - 2¹⁴ = 222457897 is a prime.

It is a super-2 number, since 2×222474281² = 98989611412933922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222474271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111237140 + 111237141.

It is an arithmetic number, because the mean of its divisors is an integer number (111237141).

Almost surely, 2^222474281 is an apocalyptic number.

It is an amenable number.

222474281 is a deficient number, since it is larger than the sum of its proper divisors (1).

222474281 is an equidigital number, since it uses as much as digits as its factorization.

222474281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14336, while the sum is 32.

The square root of 222474281 is about 14915.5717624233. The cubic root of 222474281 is about 605.9357883436.

The spelling of 222474281 in words is "two hundred twenty-two million, four hundred seventy-four thousand, two hundred eighty-one".