111010123212 has 24 divisors (see below), whose sum is σ = 262144389696. Its totient is φ = 36557550288.

The previous prime is 111010123193. The next prime is 111010123219. The reversal of 111010123212 is 212321010111.

It is a junction number, because it is equal to n+sod(n) for n = 111010123191 and 111010123200.

It is not an unprimeable number, because it can be changed into a prime (111010123219) 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, 55726978 + ... + 55728969.

It is an arithmetic number, because the mean of its divisors is an integer number (10922682904).

Almost surely, 2^111010123212 is an apocalyptic number.

111010123212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111010123212 is an abundant number, since it is smaller than the sum of its proper divisors (151134266484).

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

111010123212 is a wasteful number, since it uses less digits than its factorization.

111010123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111456037 (or 111456035 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111010123212 its reverse (212321010111), we get a palindrome (323331133323).

The spelling of 111010123212 in words is "one hundred eleven billion, ten million, one hundred twenty-three thousand, two hundred twelve".