11212012120212 has 96 divisors (see below), whose sum is σ = 29382781209600. Its totient is φ = 3696968674656.

The previous prime is 11212012120181. The next prime is 11212012120277. The reversal of 11212012120212 is 21202121021211.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 9533839 + ... + 10645097.

It is an arithmetic number, because the mean of its divisors is an integer number (306070637600).

Almost surely, 2^{11212012120212} is an apocalyptic number.

11212012120212 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 11212012120212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14691390604800).

11212012120212 is an abundant number, since it is smaller than the sum of its proper divisors (18170769089388).

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

11212012120212 is a wasteful number, since it uses less digits than its factorization.

11212012120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112282 (or 1112274 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11212012120212 its reverse (21202121021211), we get a palindrome (32414133141423).

The spelling of 11212012120212 in words is "eleven trillion, two hundred twelve billion, twelve million, one hundred twenty thousand, two hundred twelve".