10021420271 has 2 divisors, whose sum is σ = 10021420272. Its totient is φ = 10021420270.

The previous prime is 10021420243. The next prime is 10021420291. The reversal of 10021420271 is 17202412001.

It is an a-pointer prime, because the next prime (10021420291) can be obtained adding 10021420271 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10021420271 - 2²⁶ = 9954311407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021420291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010710135 + 5010710136.

It is an arithmetic number, because the mean of its divisors is an integer number (5010710136).

Almost surely, 2^10021420271 is an apocalyptic number.

10021420271 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021420271 is an equidigital number, since it uses as much as digits as its factorization.

10021420271 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 20.

Adding to 10021420271 its reverse (17202412001), we get a palindrome (27223832272).

The spelling of 10021420271 in words is "ten billion, twenty-one million, four hundred twenty thousand, two hundred seventy-one".