222252001 has 2 divisors, whose sum is σ = 222252002. Its totient is φ = 222252000.

The previous prime is 222251959. The next prime is 222252011. The reversal of 222252001 is 100252222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118701025 + 103550976 = 10895^2 + 10176^2 .

It is a cyclic number.

It is not a de Polignac number, because 222252001 - 2¹¹ = 222249953 is a prime.

It is not a weakly prime, because it can be changed into another prime (222252011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111126000 + 111126001.

It is an arithmetic number, because the mean of its divisors is an integer number (111126001).

Almost surely, 2^222252001 is an apocalyptic number.

It is an amenable number.

222252001 is a deficient number, since it is larger than the sum of its proper divisors (1).

222252001 is an equidigital number, since it uses as much as digits as its factorization.

222252001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 222252001 is about 14908.1186271105. The cubic root of 222252001 is about 605.7339188841.

The spelling of 222252001 in words is "two hundred twenty-two million, two hundred fifty-two thousand, one".