2425012021 has 2 divisors, whose sum is σ = 2425012022. Its totient is φ = 2425012020.

The previous prime is 2425012019. The next prime is 2425012027. The reversal of 2425012021 is 1202105242.

2425012021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2424479121 + 532900 = 49239^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 2425012021 - 2¹ = 2425012019 is a prime.

Together with 2425012019, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2425012021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2425012027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1212506010 + 1212506011.

It is an arithmetic number, because the mean of its divisors is an integer number (1212506011).

Almost surely, 2^2425012021 is an apocalyptic number.

It is an amenable number.

2425012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2425012021 is an equidigital number, since it uses as much as digits as its factorization.

2425012021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2425012021 is about 49244.4110635918. The cubic root of 2425012021 is about 1343.5009110144.

Adding to 2425012021 its reverse (1202105242), we get a palindrome (3627117263).

The spelling of 2425012021 in words is "two billion, four hundred twenty-five million, twelve thousand, twenty-one".