222022001 has 2 divisors, whose sum is σ = 222022002. Its totient is φ = 222022000.

The previous prime is 222021997. The next prime is 222022019. The reversal of 222022001 is 100220222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148474225 + 73547776 = 12185^2 + 8576^2 .

It is a cyclic number.

It is not a de Polignac number, because 222022001 - 2² = 222021997 is a prime.

It is not a weakly prime, because it can be changed into another prime (222022081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111011000 + 111011001.

It is an arithmetic number, because the mean of its divisors is an integer number (111011001).

Almost surely, 2^222022001 is an apocalyptic number.

It is an amenable number.

222022001 is a deficient number, since it is larger than the sum of its proper divisors (1).

222022001 is an equidigital number, since it uses as much as digits as its factorization.

222022001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 222022001 is about 14900.4027126786. The cubic root of 222022001 is about 605.5248965627.

Adding to 222022001 its reverse (100220222), we get a palindrome (322242223).

The spelling of 222022001 in words is "two hundred twenty-two million, twenty-two thousand, one".