1120112020021 has 4 divisors (see below), whose sum is σ = 1141246209132. Its totient is φ = 1098977830912.

The previous prime is 1120112019973. The next prime is 1120112020031. The reversal of 1120112020021 is 1200202110211.

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 584230922500 + 535881097521 = 764350^2 + 732039^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120112020021 - 2²⁵ = 1120078465589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120112019983 and 1120112020010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120112020031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10567094476 + ... + 10567094581.

It is an arithmetic number, because the mean of its divisors is an integer number (285311552283).

Almost surely, 2^{1120112020021} is an apocalyptic number.

It is an amenable number.

1120112020021 is a deficient number, since it is larger than the sum of its proper divisors (21134189111).

1120112020021 is an equidigital number, since it uses as much as digits as its factorization.

1120112020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21134189110.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1120112020021 its reverse (1200202110211), we get a palindrome (2320314130232).

The spelling of 1120112020021 in words is "one trillion, one hundred twenty billion, one hundred twelve million, twenty thousand, twenty-one".