12210211224 has 96 divisors (see below), whose sum is σ = 34833240000. Its totient is φ = 3853262016.

The previous prime is 12210211183. The next prime is 12210211231. The reversal of 12210211224 is 42211201221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12210211197 and 12210211206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3690579 + ... + 3693885.

It is an arithmetic number, because the mean of its divisors is an integer number (362846250).

Almost surely, 2^12210211224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210211224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17416620000).

12210211224 is an abundant number, since it is smaller than the sum of its proper divisors (22623028776).

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

12210211224 is a wasteful number, since it uses less digits than its factorization.

12210211224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6037 (or 6030 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12210211224 its reverse (42211201221), we get a palindrome (54421412445).

The spelling of 12210211224 in words is "twelve billion, two hundred ten million, two hundred eleven thousand, two hundred twenty-four".