1120200202021 has 4 divisors (see below), whose sum is σ = 1120204470700. Its totient is φ = 1120195933344.

The previous prime is 1120200202019. The next prime is 1120200202039. The reversal of 1120200202021 is 1202020020211.

It is a happy number.

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 1117430811396 + 2769390625 = 1057086^2 + 52625^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120200202021 - 2¹ = 1120200202019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120200201992 and 1120200202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120200202621) 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, 1712976 + ... + 2274793.

It is an arithmetic number, because the mean of its divisors is an integer number (280051117675).

Almost surely, 2^{1120200202021} is an apocalyptic number.

It is an amenable number.

1120200202021 is a deficient number, since it is larger than the sum of its proper divisors (4268679).

1120200202021 is an equidigital number, since it uses as much as digits as its factorization.

1120200202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268678.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1120200202021 its reverse (1202020020211), we get a palindrome (2322220222232).

The spelling of 1120200202021 in words is "one trillion, one hundred twenty billion, two hundred million, two hundred two thousand, twenty-one".