10220919 has 4 divisors (see below), whose sum is σ = 13627896. Its totient is φ = 6813944.

The previous prime is 10220911. The next prime is 10220921. The reversal of 10220919 is 91902201.

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 10220919 - 2³ = 10220911 is a prime.

It is a super-2 number, since 2×10220919² = 208934370409122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703484 + ... + 1703489.

It is an arithmetic number, because the mean of its divisors is an integer number (3406974).

Almost surely, 2^10220919 is an apocalyptic number.

10220919 is a deficient number, since it is larger than the sum of its proper divisors (3406977).

10220919 is an equidigital number, since it uses as much as digits as its factorization.

10220919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406976.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 10220919 is about 3197.0172035821. The cubic root of 10220919 is about 217.0184457693.

The spelling of 10220919 in words is "ten million, two hundred twenty thousand, nine hundred nineteen".