111120011122021 has 16 divisors (see below), whose sum is σ = 126643496371200. Its totient is φ = 96569114824000.

The previous prime is 111120011121971. The next prime is 111120011122031. The reversal of 111120011122021 is 120221110021111.

It is a cyclic number.

It is not a de Polignac number, because 111120011122021 - 2¹⁵ = 111120011089253 is a prime.

It is a super-2 number, since 2×111120011122021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111120011121986 and 111120011122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120011122031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1724416261 + ... + 1724480698.

It is an arithmetic number, because the mean of its divisors is an integer number (7915218523200).

Almost surely, 2^{111120011122021} is an apocalyptic number.

111120011122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111120011122021 is a deficient number, since it is larger than the sum of its proper divisors (15523485249179).

111120011122021 is a wasteful number, since it uses less digits than its factorization.

111120011122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448897100.

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

Adding to 111120011122021 its reverse (120221110021111), we get a palindrome (231341121143132).

It can be divided in two parts, 1111200 and 11122021, that added together give a palindrome (12233221).

The spelling of 111120011122021 in words is "one hundred eleven trillion, one hundred twenty billion, eleven million, one hundred twenty-two thousand, twenty-one".