10122818 has 8 divisors (see below), whose sum is σ = 15554700. Its totient is φ = 4937920.

The previous prime is 10122817. The next prime is 10122821. The reversal of 10122818 is 81822101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9628609 + 494209 = 3103^2 + 703^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10122818² = 204942888522248, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10122793 and 10122802.

It is not an unprimeable number, because it can be changed into a prime (10122811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61643 + ... + 61806.

Almost surely, 2^10122818 is an apocalyptic number.

10122818 is a deficient number, since it is larger than the sum of its proper divisors (5431882).

10122818 is a wasteful number, since it uses less digits than its factorization.

10122818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123492.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 10122818 is about 3181.6376286435. The cubic root of 10122818 is about 216.3218937453.

Adding to 10122818 its reverse (81822101), we get a palindrome (91944919).

The spelling of 10122818 in words is "ten million, one hundred twenty-two thousand, eight hundred eighteen".