111412234021 has 4 divisors (see below), whose sum is σ = 121540618944. Its totient is φ = 101283849100.

The previous prime is 111412234013. The next prime is 111412234033. The reversal of 111412234021 is 120432214111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111412234021 - 2³ = 111412234013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111412233983 and 111412234001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111412234061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5064192445 + ... + 5064192466.

It is an arithmetic number, because the mean of its divisors is an integer number (30385154736).

Almost surely, 2^111412234021 is an apocalyptic number.

111412234021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111412234021 is a deficient number, since it is larger than the sum of its proper divisors (10128384923).

111412234021 is a wasteful number, since it uses less digits than its factorization.

111412234021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128384922.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 111412234021 its reverse (120432214111), we get a palindrome (231844448132).

The spelling of 111412234021 in words is "one hundred eleven billion, four hundred twelve million, two hundred thirty-four thousand, twenty-one".