222401723 has 2 divisors, whose sum is σ = 222401724. Its totient is φ = 222401722.

The previous prime is 222401717. The next prime is 222401731. The reversal of 222401723 is 327104222.

It is a happy number.

222401723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222401723 is a prime.

It is not a weakly prime, because it can be changed into another prime (222400723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111200861 + 111200862.

It is an arithmetic number, because the mean of its divisors is an integer number (111200862).

Almost surely, 2^222401723 is an apocalyptic number.

222401723 is a deficient number, since it is larger than the sum of its proper divisors (1).

222401723 is an equidigital number, since it uses as much as digits as its factorization.

222401723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 222401723 is about 14913.1392738082. The cubic root of 222401723 is about 605.8699076655.

Adding to 222401723 its reverse (327104222), we get a palindrome (549505945).

The spelling of 222401723 in words is "two hundred twenty-two million, four hundred one thousand, seven hundred twenty-three".