20220021271 has 2 divisors, whose sum is σ = 20220021272. Its totient is φ = 20220021270.

The previous prime is 20220021167. The next prime is 20220021301. The reversal of 20220021271 is 17212002202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20220021271 - 2²⁹ = 19683150359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20220021571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110010635 + 10110010636.

It is an arithmetic number, because the mean of its divisors is an integer number (10110010636).

Almost surely, 2^20220021271 is an apocalyptic number.

20220021271 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220021271 is an equidigital number, since it uses as much as digits as its factorization.

20220021271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

Adding to 20220021271 its reverse (17212002202), we get a palindrome (37432023473).

The spelling of 20220021271 in words is "twenty billion, two hundred twenty million, twenty-one thousand, two hundred seventy-one".