10812220 has 12 divisors (see below), whose sum is σ = 22705704. Its totient is φ = 4324880.

The previous prime is 10812203. The next prime is 10812227. The reversal of 10812220 is 2221801.

It is a junction number, because it is equal to n+sod(n) for n = 10812194 and 10812203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10812227) 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, 270286 + ... + 270325.

It is an arithmetic number, because the mean of its divisors is an integer number (1892142).

Almost surely, 2^10812220 is an apocalyptic number.

10812220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10812220 is an abundant number, since it is smaller than the sum of its proper divisors (11893484).

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

10812220 is a wasteful number, since it uses less digits than its factorization.

10812220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540620 (or 540618 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 10812220 is about 3288.1940332042. The cubic root of 10812220 is about 221.1252267633.

The spelling of 10812220 in words is "ten million, eight hundred twelve thousand, two hundred twenty".