2020113311221 has 2 divisors, whose sum is σ = 2020113311222. Its totient is φ = 2020113311220.

The previous prime is 2020113311201. The next prime is 2020113311261. The reversal of 2020113311221 is 1221133110202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1577071314225 + 443041996996 = 1255815^2 + 665614^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020113311221 - 2⁵ = 2020113311189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020113311201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010056655610 + 1010056655611.

It is an arithmetic number, because the mean of its divisors is an integer number (1010056655611).

Almost surely, 2^{2020113311221} is an apocalyptic number.

It is an amenable number.

2020113311221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020113311221 is an equidigital number, since it uses as much as digits as its factorization.

2020113311221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2020113311221 its reverse (1221133110202), we get a palindrome (3241246421423).

The spelling of 2020113311221 in words is "two trillion, twenty billion, one hundred thirteen million, three hundred eleven thousand, two hundred twenty-one".