111220100012112 has 160 divisors (see below), whose sum is σ = 363180257809152. Its totient is φ = 28539995922432.

The previous prime is 111220100012107. The next prime is 111220100012113. The reversal of 111220100012112 is 211210001022111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111220100012091 and 111220100012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220100012113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343925913 + ... + 344249144.

Almost surely, 2^{111220100012112} is an apocalyptic number.

111220100012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111220100012112 is an abundant number, since it is smaller than the sum of its proper divisors (251960157797040).

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

111220100012112 is a wasteful number, since it uses less digits than its factorization.

111220100012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688175125 (or 688175119 counting only the distinct ones).

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

Adding to 111220100012112 its reverse (211210001022111), we get a palindrome (322430101034223).

The spelling of 111220100012112 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred million, twelve thousand, one hundred twelve".