2252426021 has 2 divisors, whose sum is σ = 2252426022. Its totient is φ = 2252426020.

The previous prime is 2252425961. The next prime is 2252426063. The reversal of 2252426021 is 1206242522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2251502500 + 923521 = 47450^2 + 961^2 .

It is a cyclic number.

It is not a de Polignac number, because 2252426021 - 2¹⁴ = 2252409637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2252426221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1126213010 + 1126213011.

It is an arithmetic number, because the mean of its divisors is an integer number (1126213011).

Almost surely, 2^2252426021 is an apocalyptic number.

It is an amenable number.

2252426021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2252426021 is an equidigital number, since it uses as much as digits as its factorization.

2252426021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2252426021 is about 47459.7305196732. The cubic root of 2252426021 is about 1310.8414889491.

Adding to 2252426021 its reverse (1206242522), we get a palindrome (3458668543).

The spelling of 2252426021 in words is "two billion, two hundred fifty-two million, four hundred twenty-six thousand, twenty-one".