10220851 has 4 divisors (see below), whose sum is σ = 10236712. Its totient is φ = 10204992.

The previous prime is 10220827. The next prime is 10220863. The reversal of 10220851 is 15802201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15802201 = 3271 ⋅4831.

It is a cyclic number.

It is not a de Polignac number, because 10220851 - 2⁹ = 10220339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10220051) 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, 6921 + ... + 8266.

It is an arithmetic number, because the mean of its divisors is an integer number (2559178).

Almost surely, 2^10220851 is an apocalyptic number.

10220851 is a deficient number, since it is larger than the sum of its proper divisors (15861).

10220851 is an equidigital number, since it uses as much as digits as its factorization.

10220851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15860.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 10220851 is about 3197.0065686514. The cubic root of 10220851 is about 217.0179644921.

The spelling of 10220851 in words is "ten million, two hundred twenty thousand, eight hundred fifty-one".