2020232131221 has 16 divisors (see below), whose sum is σ = 2709331321536. Its totient is φ = 1338977861376.

The previous prime is 2020232131219. The next prime is 2020232131243. The reversal of 2020232131221 is 1221312320202.

It is not a de Polignac number, because 2020232131221 - 2¹ = 2020232131219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020232131921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14088541 + ... + 14231213.

It is an arithmetic number, because the mean of its divisors is an integer number (169333207596).

Almost surely, 2^{2020232131221} is an apocalyptic number.

It is an amenable number.

2020232131221 is a deficient number, since it is larger than the sum of its proper divisors (689099190315).

2020232131221 is a wasteful number, since it uses less digits than its factorization.

2020232131221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170132.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2020232131221 its reverse (1221312320202), we get a palindrome (3241544451423).

The spelling of 2020232131221 in words is "two trillion, twenty billion, two hundred thirty-two million, one hundred thirty-one thousand, two hundred twenty-one".