2124421001 has 2 divisors, whose sum is σ = 2124421002. Its totient is φ = 2124421000.

The previous prime is 2124420973. The next prime is 2124421007. The reversal of 2124421001 is 1001244212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1751004025 + 373416976 = 41845^2 + 19324^2 .

It is a cyclic number.

It is not a de Polignac number, because 2124421001 - 2⁶ = 2124420937 is a prime.

It is not a weakly prime, because it can be changed into another prime (2124421007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062210500 + 1062210501.

It is an arithmetic number, because the mean of its divisors is an integer number (1062210501).

Almost surely, 2^2124421001 is an apocalyptic number.

It is an amenable number.

2124421001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124421001 is an equidigital number, since it uses as much as digits as its factorization.

2124421001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2124421001 is about 46091.4417327122. The cubic root of 2124421001 is about 1285.5240184895.

Adding to 2124421001 its reverse (1001244212), we get a palindrome (3125665213).

The spelling of 2124421001 in words is "two billion, one hundred twenty-four million, four hundred twenty-one thousand, one".