2022121001 has 2 divisors, whose sum is σ = 2022121002. Its totient is φ = 2022121000.

The previous prime is 2022120977. The next prime is 2022121027. The reversal of 2022121001 is 1001212202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2013855376 + 8265625 = 44876^2 + 2875^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022121001 - 2⁶ = 2022120937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2022121081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011060500 + 1011060501.

It is an arithmetic number, because the mean of its divisors is an integer number (1011060501).

Almost surely, 2^2022121001 is an apocalyptic number.

It is an amenable number.

2022121001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022121001 is an equidigital number, since it uses as much as digits as its factorization.

2022121001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2022121001 is about 44967.9997442626. Note that the first 3 decimals coincide. The cubic root of 2022121001 is about 1264.5491477116.

Adding to 2022121001 its reverse (1001212202), we get a palindrome (3023333203).

The spelling of 2022121001 in words is "two billion, twenty-two million, one hundred twenty-one thousand, one".