1002022425 has 18 divisors (see below), whose sum is σ = 1794733902. Its totient is φ = 534411840.

The previous prime is 1002022403. The next prime is 1002022447. The reversal of 1002022425 is 5242202001.

It is an interprime number because it is at equal distance from previous prime (1002022403) and next prime (1002022447).

It can be written as a sum of positive squares in 3 ways, for example, as 18071001 + 983951424 = 4251^2 + 31368^2 .

It is not a de Polignac number, because 1002022425 - 2¹¹ = 1002020377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002022398 and 1002022407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2226492 + ... + 2226941.

It is an arithmetic number, because the mean of its divisors is an integer number (99707439).

Almost surely, 2^1002022425 is an apocalyptic number.

1002022425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1002022425 is a deficient number, since it is larger than the sum of its proper divisors (792711477).

1002022425 is a wasteful number, since it uses less digits than its factorization.

1002022425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453449 (or 4453441 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1002022425 is about 31654.7377970502. The cubic root of 1002022425 is about 1000.6736877096.

Adding to 1002022425 its reverse (5242202001), we get a palindrome (6244224426).

The spelling of 1002022425 in words is "one billion, two million, twenty-two thousand, four hundred twenty-five".