1022201 has 2 divisors, whose sum is σ = 1022202. Its totient is φ = 1022200.

The previous prime is 1022191. The next prime is 1022209.

1022201 is nontrivially palindromic in base 10.

It is an a-pointer prime, because the next prime (1022209) can be obtained adding 1022201 to its sum of digits (8).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1000000 + 22201 = 1000^2 + 149^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 1022201 - 2⁶ = 1022137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511100 + 511101.

It is an arithmetic number, because the mean of its divisors is an integer number (511101).

2^1022201 is an apocalyptic number.

It is an amenable number.

1022201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022201 is an equidigital number, since it uses as much as digits as its factorization.

1022201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1022201 is about 1011.0395640132. The cubic root of 1022201 is about 100.7346234027.

The spelling of 1022201 in words is "one million, twenty-two thousand, two hundred one".