111120012021 has 16 divisors (see below), whose sum is σ = 148327826688. Its totient is φ = 73996152000.

The previous prime is 111120012011. The next prime is 111120012043. The reversal of 111120012021 is 120210021111.

It is not a de Polignac number, because 111120012021 - 2¹⁰ = 111120010997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111120011988 and 111120012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120012011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15329620 + ... + 15336866.

It is an arithmetic number, because the mean of its divisors is an integer number (9270489168).

Almost surely, 2^111120012021 is an apocalyptic number.

It is an amenable number.

111120012021 is a deficient number, since it is larger than the sum of its proper divisors (37207814667).

111120012021 is a wasteful number, since it uses less digits than its factorization.

111120012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12332.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111120012021 its reverse (120210021111), we get a palindrome (231330033132).

The spelling of 111120012021 in words is "one hundred eleven billion, one hundred twenty million, twelve thousand, twenty-one".