20002102120271 has 2 divisors, whose sum is σ = 20002102120272. Its totient is φ = 20002102120270.

The previous prime is 20002102120159. The next prime is 20002102120277. The reversal of 20002102120271 is 17202120120002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20002102120271 - 2¹⁴ = 20002102103887 is a prime.

It is a super-2 number, since 2×20002102120271² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20002102120277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001051060135 + 10001051060136.

It is an arithmetic number, because the mean of its divisors is an integer number (10001051060136).

Almost surely, 2^{20002102120271} is an apocalyptic number.

20002102120271 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002102120271 is an equidigital number, since it uses as much as digits as its factorization.

20002102120271 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 20002102120271 its reverse (17202120120002), we get a palindrome (37204222240273).

The spelling of 20002102120271 in words is "twenty trillion, two billion, one hundred two million, one hundred twenty thousand, two hundred seventy-one".