21200201202071 has 2 divisors, whose sum is σ = 21200201202072. Its totient is φ = 21200201202070.

The previous prime is 21200201202023. The next prime is 21200201202083. The reversal of 21200201202071 is 17020210200212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21200201202071 - 2²⁶ = 21200134093207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21200201202001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600100601035 + 10600100601036.

It is an arithmetic number, because the mean of its divisors is an integer number (10600100601036).

Almost surely, 2^{21200201202071} is an apocalyptic number.

21200201202071 is a deficient number, since it is larger than the sum of its proper divisors (1).

21200201202071 is an equidigital number, since it uses as much as digits as its factorization.

21200201202071 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 21200201202071 its reverse (17020210200212), we get a palindrome (38220411402283).

The spelling of 21200201202071 in words is "twenty-one trillion, two hundred billion, two hundred one million, two hundred two thousand, seventy-one".