10021323225 has 24 divisors (see below), whose sum is σ = 16571876832. Its totient is φ = 5343644800.

The previous prime is 10021323223. The next prime is 10021323227. The reversal of 10021323225 is 52232312001.

It is an interprime number because it is at equal distance from previous prime (10021323223) and next prime (10021323227).

It is not a de Polignac number, because 10021323225 - 2¹ = 10021323223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10021323223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 497194 + ... + 516956.

It is an arithmetic number, because the mean of its divisors is an integer number (690494868).

Almost surely, 2^10021323225 is an apocalyptic number.

10021323225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10021323225 is a deficient number, since it is larger than the sum of its proper divisors (6550553607).

10021323225 is a wasteful number, since it uses less digits than its factorization.

10021323225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26537 (or 26532 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 10021323225 its reverse (52232312001), we get a palindrome (62253635226).

The spelling of 10021323225 in words is "ten billion, twenty-one million, three hundred twenty-three thousand, two hundred twenty-five".