2020221487 has 2 divisors, whose sum is σ = 2020221488. Its totient is φ = 2020221486.

The previous prime is 2020221481. The next prime is 2020221527. The reversal of 2020221487 is 7841220202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020221487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020221481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010110743 + 1010110744.

It is an arithmetic number, because the mean of its divisors is an integer number (1010110744).

Almost surely, 2^2020221487 is an apocalyptic number.

2020221487 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020221487 is an equidigital number, since it uses as much as digits as its factorization.

2020221487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 2020221487 is about 44946.8740514844. The cubic root of 2020221487 is about 1264.1530650291.

Adding to 2020221487 its reverse (7841220202), we get a palindrome (9861441689).

The spelling of 2020221487 in words is "two billion, twenty million, two hundred twenty-one thousand, four hundred eighty-seven".