2020221377 has 2 divisors, whose sum is σ = 2020221378. Its totient is φ = 2020221376.

The previous prime is 2020221323. The next prime is 2020221383. The reversal of 2020221377 is 7731220202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1982386576 + 37834801 = 44524^2 + 6151^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020221377 - 2⁸ = 2020221121 is a prime.

It is a super-2 number, since 2×2020221377² = 8162588824175552258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2020221277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010110688 + 1010110689.

It is an arithmetic number, because the mean of its divisors is an integer number (1010110689).

Almost surely, 2^2020221377 is an apocalyptic number.

It is an amenable number.

2020221377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020221377 is an equidigital number, since it uses as much as digits as its factorization.

2020221377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 2020221377 is about 44946.8728278175. The cubic root of 2020221377 is about 1264.1530420849.

Adding to 2020221377 its reverse (7731220202), we get a palindrome (9751441579).

The spelling of 2020221377 in words is "two billion, twenty million, two hundred twenty-one thousand, three hundred seventy-seven".