2020113221221 has 4 divisors (see below), whose sum is σ = 2020139053600. Its totient is φ = 2020087388844.

The previous prime is 2020113221171. The next prime is 2020113221227. The reversal of 2020113221221 is 1221223110202.

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 a cyclic number.

It is not a de Polignac number, because 2020113221221 - 2¹⁹ = 2020112696933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020113221227) 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, 12798531 + ... + 12955408.

It is an arithmetic number, because the mean of its divisors is an integer number (505034763400).

Almost surely, 2^{2020113221221} is an apocalyptic number.

It is an amenable number.

2020113221221 is a deficient number, since it is larger than the sum of its proper divisors (25832379).

2020113221221 is an equidigital number, since it uses as much as digits as its factorization.

2020113221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25832378.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2020113221221 its reverse (1221223110202), we get a palindrome (3241336331423).

The spelling of 2020113221221 in words is "two trillion, twenty billion, one hundred thirteen million, two hundred twenty-one thousand, two hundred twenty-one".