11331111322212 has 192 divisors, whose sum is σ = 30545683580160. Its totient is φ = 3237470208000.

The previous prime is 11331111322211. The next prime is 11331111322213. The reversal of 11331111322212 is 21222311113311.

It is an interprime number because it is at equal distance from previous prime (11331111322211) and next prime (11331111322213).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11331111322211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28023108 + ... + 28424580.

It is an arithmetic number, because the mean of its divisors is an integer number (159092101980).

Almost surely, 2^{11331111322212} is an apocalyptic number.

11331111322212 is a gapful number since it is divisible by the number (12) 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 11331111322212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15272841790080).

11331111322212 is an abundant number, since it is smaller than the sum of its proper divisors (19214572257948).

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

11331111322212 is a wasteful number, since it uses less digits than its factorization.

11331111322212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401694 (or 401692 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

Adding to 11331111322212 its reverse (21222311113311), we get a palindrome (32553422435523).

The spelling of 11331111322212 in words is "eleven trillion, three hundred thirty-one billion, one hundred eleven million, three hundred twenty-two thousand, two hundred twelve".