12218010 has 64 divisors (see below), whose sum is σ = 34013952. Its totient is φ = 2750976.

The previous prime is 12217993. The next prime is 12218027. The reversal of 12218010 is 1081221.

It is an interprime number because it is at equal distance from previous prime (12217993) and next prime (12218027).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 14932 + ... + 15728.

It is an arithmetic number, because the mean of its divisors is an integer number (531468).

Almost surely, 2^12218010 is an apocalyptic number.

12218010 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 12218010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17006976).

12218010 is an abundant number, since it is smaller than the sum of its proper divisors (21795942).

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

12218010 is a wasteful number, since it uses less digits than its factorization.

12218010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 12218010 is about 3495.4270125408. The cubic root of 12218010 is about 230.3209759251.

Adding to 12218010 its reverse (1081221), we get a palindrome (13299231).

The spelling of 12218010 in words is "twelve million, two hundred eighteen thousand, ten".