12212135000 has 160 divisors (see below), whose sum is σ = 31175020800. Its totient is φ = 4456320000.

The previous prime is 12212134997. The next prime is 12212135041. The reversal of 12212135000 is 53121221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212135000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5783945 + ... + 5786055.

It is an arithmetic number, because the mean of its divisors is an integer number (194843880).

Almost surely, 2^12212135000 is an apocalyptic number.

12212135000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212135000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15587510400).

12212135000 is an abundant number, since it is smaller than the sum of its proper divisors (18962885800).

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

12212135000 is a wasteful number, since it uses less digits than its factorization.

12212135000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239 (or 2220 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 12212135000 its reverse (53121221), we get a palindrome (12265256221).

The spelling of 12212135000 in words is "twelve billion, two hundred twelve million, one hundred thirty-five thousand".