12212010 has 48 divisors (see below), whose sum is σ = 32438016. Its totient is φ = 3186144.

The previous prime is 12211981. The next prime is 12212021. The reversal of 12212010 is 1021221.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12211983 and 12212001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2787 + ... + 5673.

It is an arithmetic number, because the mean of its divisors is an integer number (675792).

Almost surely, 2^12212010 is an apocalyptic number.

12212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16219008).

12212010 is an abundant number, since it is smaller than the sum of its proper divisors (20226006).

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

12212010 is a wasteful number, since it uses less digits than its factorization.

12212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947 (or 2944 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 12212010 is about 3494.5686429086. The cubic root of 12212010 is about 230.2832678714.

Adding to 12212010 its reverse (1021221), we get a palindrome (13233231).

The spelling of 12212010 in words is "twelve million, two hundred twelve thousand, ten".