1112001111021 has 4 divisors (see below), whose sum is σ = 1482668148032. Its totient is φ = 741334074012.

The previous prime is 1112001110999. The next prime is 1112001111031. The reversal of 1112001111021 is 1201111002111.

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 not a de Polignac number, because 1112001111021 - 2⁵ = 1112001110989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112001110988 and 1112001111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112001111031) 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, 185333518501 + ... + 185333518506.

It is an arithmetic number, because the mean of its divisors is an integer number (370667037008).

Almost surely, 2^{1112001111021} is an apocalyptic number.

It is an amenable number.

1112001111021 is a deficient number, since it is larger than the sum of its proper divisors (370667037011).

1112001111021 is an equidigital number, since it uses as much as digits as its factorization.

1112001111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370667037010.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1112001111021 its reverse (1201111002111), we get a palindrome (2313112113132).

It can be divided in two parts, 111200 and 1111021, that added together give a palindrome (1222221).

The spelling of 1112001111021 in words is "one trillion, one hundred twelve billion, one million, one hundred eleven thousand, twenty-one".