111130022021 has 4 divisors (see below), whose sum is σ = 111141256044. Its totient is φ = 111118788000.

The previous prime is 111130021999. The next prime is 111130022027. The reversal of 111130022021 is 120220031111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83975925796 + 27154096225 = 289786^2 + 164785^2 .

It is a cyclic number.

It is not a de Polignac number, because 111130022021 - 2¹⁸ = 111129759877 is a prime.

It is a super-3 number, since 3×111130022021³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111130021987 and 111130022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111130022027) 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, 5602160 + ... + 5621961.

It is an arithmetic number, because the mean of its divisors is an integer number (27785314011).

Almost surely, 2^111130022021 is an apocalyptic number.

It is an amenable number.

111130022021 is a deficient number, since it is larger than the sum of its proper divisors (11234023).

111130022021 is an equidigital number, since it uses as much as digits as its factorization.

111130022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11234022.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 111130022021 its reverse (120220031111), we get a palindrome (231350053132).

The spelling of 111130022021 in words is "one hundred eleven billion, one hundred thirty million, twenty-two thousand, twenty-one".