11212212000000 has 1512 divisors, whose sum is σ = 42560325845856. Its totient is φ = 2598400000000.

The previous prime is 11212211999999. The next prime is 11212212000023. The reversal of 11212212000000 is 21221211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11212212000000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 111011999950 + ... + 111012000050.

Almost surely, 2^{11212212000000} is an apocalyptic number.

11212212000000 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 11212212000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21280162922928).

11212212000000 is an abundant number, since it is smaller than the sum of its proper divisors (31348113845856).

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

11212212000000 is an frugal number, since it uses more digits than its factorization.

11212212000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11212212000000 its reverse (21221211), we get a palindrome (11212233221211).

The spelling of 11212212000000 in words is "eleven trillion, two hundred twelve billion, two hundred twelve million", and thus it is an aban number.