11112120001212 has 24 divisors (see below), whose sum is σ = 25928722374912. Its totient is φ = 3703976804400.

The previous prime is 11112120001207. The next prime is 11112120001219. The reversal of 11112120001212 is 21210002121111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11112120001191 and 11112120001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112120001219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7164114 + ... + 8576057.

It is an arithmetic number, because the mean of its divisors is an integer number (1080363432288).

Almost surely, 2^{11112120001212} is an apocalyptic number.

11112120001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11112120001212 is an abundant number, since it is smaller than the sum of its proper divisors (14816602373700).

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

11112120001212 is a wasteful number, since it uses less digits than its factorization.

11112120001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15799009 (or 15799007 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11112120001212 its reverse (21210002121111), we get a palindrome (32322122122323).

The spelling of 11112120001212 in words is "eleven trillion, one hundred twelve billion, one hundred twenty million, one thousand, two hundred twelve".