222240001 has 2 divisors, whose sum is σ = 222240002. Its totient is φ = 222240000.

The previous prime is 222239993. The next prime is 222240043. The reversal of 222240001 is 100042222.

222240001 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 can be written as a sum of positive squares in only one way, i.e., 211993600 + 10246401 = 14560^2 + 3201^2 .

It is a cyclic number.

It is not a de Polignac number, because 222240001 - 2³ = 222239993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222240071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111120000 + 111120001.

It is an arithmetic number, because the mean of its divisors is an integer number (111120001).

Almost surely, 2^222240001 is an apocalyptic number.

It is an amenable number.

222240001 is a deficient number, since it is larger than the sum of its proper divisors (1).

222240001 is an equidigital number, since it uses as much as digits as its factorization.

222240001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 222240001 is about 14907.7161564071. The cubic root of 222240001 is about 605.7230169382.

Adding to 222240001 its reverse (100042222), we get a palindrome (322282223).

The spelling of 222240001 in words is "two hundred twenty-two million, two hundred forty thousand, one".