10002002251 has 4 divisors (see below), whose sum is σ = 10063364392. Its totient is φ = 9940640112.

The previous prime is 10002002239. The next prime is 10002002267. The reversal of 10002002251 is 15220020001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10002002251 - 2¹⁷ = 10001871179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10002002281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30680826 + ... + 30681151.

It is an arithmetic number, because the mean of its divisors is an integer number (2515841098).

Almost surely, 2^10002002251 is an apocalyptic number.

10002002251 is a deficient number, since it is larger than the sum of its proper divisors (61362141).

10002002251 is an equidigital number, since it uses as much as digits as its factorization.

10002002251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61362140.

The product of its (nonzero) digits is 40, while the sum is 13.

Adding to 10002002251 its reverse (15220020001), we get a palindrome (25222022252).

The spelling of 10002002251 in words is "ten billion, two million, two thousand, two hundred fifty-one".