111011101212 has 48 divisors (see below), whose sum is σ = 282847606272. Its totient is φ = 33607121280.

The previous prime is 111011101207. The next prime is 111011101273. The reversal of 111011101212 is 212101110111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270708 + ... + 543419.

It is an arithmetic number, because the mean of its divisors is an integer number (5892658464).

Almost surely, 2^111011101212 is an apocalyptic number.

111011101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111011101212 is an abundant number, since it is smaller than the sum of its proper divisors (171836505060).

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

111011101212 is a wasteful number, since it uses less digits than its factorization.

111011101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815178 (or 815176 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111011101212 its reverse (212101110111), we get a palindrome (323112211323).

The spelling of 111011101212 in words is "one hundred eleven billion, eleven million, one hundred one thousand, two hundred twelve".