222042001 has 2 divisors, whose sum is σ = 222042002. Its totient is φ = 222042000.

The previous prime is 222041993. The next prime is 222042043. The reversal of 222042001 is 100240222.

222042001 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., 201611601 + 20430400 = 14199^2 + 4520^2 .

It is a cyclic number.

It is not a de Polignac number, because 222042001 - 2³ = 222041993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222040001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111021000 + 111021001.

It is an arithmetic number, because the mean of its divisors is an integer number (111021001).

Almost surely, 2^222042001 is an apocalyptic number.

It is an amenable number.

222042001 is a deficient number, since it is larger than the sum of its proper divisors (1).

222042001 is an equidigital number, since it uses as much as digits as its factorization.

222042001 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 222042001 is about 14901.0738203661. The cubic root of 222042001 is about 605.5430781457.

Adding to 222042001 its reverse (100240222), we get a palindrome (322282223).

The spelling of 222042001 in words is "two hundred twenty-two million, forty-two thousand, one".