10020215 has 4 divisors (see below), whose sum is σ = 12024264. Its totient is φ = 8016168.

The previous prime is 10020193. The next prime is 10020253. The reversal of 10020215 is 51202001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51202001 = 1399 ⋅36599.

It is a cyclic number.

It is not a de Polignac number, because 10020215 - 2⁶ = 10020151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020196 and 10020205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002017 + ... + 1002026.

It is an arithmetic number, because the mean of its divisors is an integer number (3006066).

Almost surely, 2^10020215 is an apocalyptic number.

10020215 is a deficient number, since it is larger than the sum of its proper divisors (2004049).

10020215 is an equidigital number, since it uses as much as digits as its factorization.

10020215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004048.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 10020215 is about 3165.4723186280. The cubic root of 10020215 is about 215.5885442814.

Adding to 10020215 its reverse (51202001), we get a palindrome (61222216).

It can be divided in two parts, 1002021 and 5, that multiplied together give a palindrome (5010105).

The spelling of 10020215 in words is "ten million, twenty thousand, two hundred fifteen".