12213231222000 has 320 divisors, whose sum is σ = 41699412638208. Its totient is φ = 3064711680000.

The previous prime is 12213231221999. The next prime is 12213231222047. The reversal of 12213231222000 is 22213231221.

It is a super-2 number, since 2×12213231222000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 927275415 + ... + 927288585.

Almost surely, 2^{12213231222000} is an apocalyptic number.

12213231222000 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 12213231222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20849706319104).

12213231222000 is an abundant number, since it is smaller than the sum of its proper divisors (29486181416208).

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

12213231222000 is a wasteful number, since it uses less digits than its factorization.

12213231222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22305 (or 22289 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12213231222000 its reverse (22213231221), we get a palindrome (12235444453221).

The spelling of 12213231222000 in words is "twelve trillion, two hundred thirteen billion, two hundred thirty-one million, two hundred twenty-two thousand".