12213323131000 has 128 divisors (see below), whose sum is σ = 28738980092160. Its totient is φ = 4858033152000.

The previous prime is 12213323130991. The next prime is 12213323131033. The reversal of 12213323131000 is 13132331221.

It is a super-2 number, since 2×12213323131000² (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 31 ways as a sum of consecutive naturals, for example, 529001457 + ... + 529024543.

It is an arithmetic number, because the mean of its divisors is an integer number (224523281970).

Almost surely, 2^{12213323131000} is an apocalyptic number.

12213323131000 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 12213323131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14369490046080).

12213323131000 is an abundant number, since it is smaller than the sum of its proper divisors (16525656961160).

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

12213323131000 is a wasteful number, since it uses less digits than its factorization.

12213323131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26042 (or 26028 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12213323131000 its reverse (13132331221), we get a palindrome (12226455462221).

The spelling of 12213323131000 in words is "twelve trillion, two hundred thirteen billion, three hundred twenty-three million, one hundred thirty-one thousand".