1112111011021 has 8 divisors (see below), whose sum is σ = 1116159866784. Its totient is φ = 1108062994800.

The previous prime is 1112111010991. The next prime is 1112111011027. The reversal of 1112111011021 is 1201101112111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1112111011021 - 2⁹ = 1112111010509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112111010992 and 1112111011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112111011027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2508171 + ... + 2918071.

It is an arithmetic number, because the mean of its divisors is an integer number (139519983348).

Almost surely, 2^{1112111011021} is an apocalyptic number.

It is an amenable number.

1112111011021 is a deficient number, since it is larger than the sum of its proper divisors (4048855763).

1112111011021 is an equidigital number, since it uses as much as digits as its factorization.

1112111011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419771.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1112111011021 its reverse (1201101112111), we get a palindrome (2313212123132).

The spelling of 1112111011021 in words is "one trillion, one hundred twelve billion, one hundred eleven million, eleven thousand, twenty-one".