2020010120221 has 4 divisors (see below), whose sum is σ = 2024808244444. Its totient is φ = 2015211996000.

The previous prime is 2020010120213. The next prime is 2020010120231. The reversal of 2020010120221 is 1220210100202.

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 91439107321 + 1928571012900 = 302389^2 + 1388730^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020010120221 - 2³ = 2020010120213 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 (2020010120231) 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, 2399061480 + ... + 2399062321.

It is an arithmetic number, because the mean of its divisors is an integer number (506202061111).

Almost surely, 2^{2020010120221} is an apocalyptic number.

It is an amenable number.

2020010120221 is a deficient number, since it is larger than the sum of its proper divisors (4798124223).

2020010120221 is an equidigital number, since it uses as much as digits as its factorization.

2020010120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798124222.

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

Adding to 2020010120221 its reverse (1220210100202), we get a palindrome (3240220220423).

The spelling of 2020010120221 in words is "two trillion, twenty billion, ten million, one hundred twenty thousand, two hundred twenty-one".