10212818 has 64 divisors (see below), whose sum is σ = 20901888. Its totient is φ = 3621120.

The previous prime is 10212809. The next prime is 10212821. The reversal of 10212818 is 81821201.

It is a happy number.

It is a super-2 number, since 2×10212818² = 208603303002248, 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 = 10212793 and 10212802.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123005 + ... + 123087.

It is an arithmetic number, because the mean of its divisors is an integer number (326592).

Almost surely, 2^10212818 is an apocalyptic number.

10212818 is an abundant number, since it is smaller than the sum of its proper divisors (10689070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10212818 is a wasteful number, since it uses less digits than its factorization.

10212818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167.

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

The square root of 10212818 is about 3195.7499902214. The cubic root of 10212818 is about 216.9610950520.

The spelling of 10212818 in words is "ten million, two hundred twelve thousand, eight hundred eighteen".