12212223330 has 64 divisors (see below), whose sum is σ = 30550942080. Its totient is φ = 3121265664.

The previous prime is 12212223323. The next prime is 12212223337. The reversal of 12212223330 is 3332221221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12212223323) and next prime (12212223337).

It is a junction number, because it is equal to n+sod(n) for n = 12212223297 and 12212223306.

It is not an unprimeable number, because it can be changed into a prime (12212223337) 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, 7735 + ... + 156474.

It is an arithmetic number, because the mean of its divisors is an integer number (477358470).

Almost surely, 2^12212223330 is an apocalyptic number.

12212223330 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 12212223330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15275471040).

12212223330 is an abundant number, since it is smaller than the sum of its proper divisors (18338718750).

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

12212223330 is a wasteful number, since it uses less digits than its factorization.

12212223330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164323.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12212223330 its reverse (3332221221), we get a palindrome (15544444551).

The spelling of 12212223330 in words is "twelve billion, two hundred twelve million, two hundred twenty-three thousand, three hundred thirty".