222452641 has 2 divisors, whose sum is σ = 222452642. Its totient is φ = 222452640.

The previous prime is 222452639. The next prime is 222452669. The reversal of 222452641 is 146254222.

It is an a-pointer prime, because the next prime (222452669) can be obtained adding 222452641 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219158416 + 3294225 = 14804^2 + 1815^2 .

It is a cyclic number.

It is not a de Polignac number, because 222452641 - 2¹ = 222452639 is a prime.

Together with 222452639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (222452141) 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, 111226320 + 111226321.

It is an arithmetic number, because the mean of its divisors is an integer number (111226321).

Almost surely, 2^222452641 is an apocalyptic number.

It is an amenable number.

222452641 is a deficient number, since it is larger than the sum of its proper divisors (1).

222452641 is an equidigital number, since it uses as much as digits as its factorization.

222452641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 28.

The square root of 222452641 is about 14914.8463284071. The cubic root of 222452641 is about 605.9161413150.

The spelling of 222452641 in words is "two hundred twenty-two million, four hundred fifty-two thousand, six hundred forty-one".