10251020215 has 12 divisors (see below), whose sum is σ = 12337501176. Its totient is φ = 8176702448.

The previous prime is 10251020141. The next prime is 10251020279. The reversal of 10251020215 is 51202015201.

It is not a de Polignac number, because 10251020215 - 2²⁹ = 9714149303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10251020192 and 10251020201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 593532 + ... + 610558.

It is an arithmetic number, because the mean of its divisors is an integer number (1028125098).

Almost surely, 2^10251020215 is an apocalyptic number.

10251020215 is a deficient number, since it is larger than the sum of its proper divisors (2086480961).

10251020215 is an frugal number, since it uses more digits than its factorization.

10251020215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17726 (or 17379 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 10251020215 its reverse (51202015201), we get a palindrome (61453035416).

The spelling of 10251020215 in words is "ten billion, two hundred fifty-one million, twenty thousand, two hundred fifteen".