12222510 has 64 divisors (see below), whose sum is σ = 31691520. Its totient is φ = 3006720.

The previous prime is 12222461. The next prime is 12222517. The reversal of 12222510 is 1522221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12222510.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23109 + ... + 23631.

It is an arithmetic number, because the mean of its divisors is an integer number (495180).

Almost surely, 2^12222510 is an apocalyptic number.

12222510 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 12222510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15845760).

12222510 is an abundant number, since it is smaller than the sum of its proper divisors (19469010).

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

12222510 is a wasteful number, since it uses less digits than its factorization.

12222510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 12222510 is about 3496.0706514600. The cubic root of 12222510 is about 230.3492488646.

Adding to 12222510 its reverse (1522221), we get a palindrome (13744731).

The spelling of 12222510 in words is "twelve million, two hundred twenty-two thousand, five hundred ten".