20064262021 has 2 divisors, whose sum is σ = 20064262022. Its totient is φ = 20064262020.

The previous prime is 20064262013. The next prime is 20064262027. The reversal of 20064262021 is 12026246002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13301008900 + 6763253121 = 115330^2 + 82239^2 .

It is a cyclic number.

It is not a de Polignac number, because 20064262021 - 2³ = 20064262013 is a prime.

It is a super-2 number, since 2×20064262021² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20064262027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10032131010 + 10032131011.

It is an arithmetic number, because the mean of its divisors is an integer number (10032131011).

Almost surely, 2^20064262021 is an apocalyptic number.

It is an amenable number.

20064262021 is a deficient number, since it is larger than the sum of its proper divisors (1).

20064262021 is an equidigital number, since it uses as much as digits as its factorization.

20064262021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 20064262021 in words is "twenty billion, sixty-four million, two hundred sixty-two thousand, twenty-one".