202121000200127 has 2 divisors, whose sum is σ = 202121000200128. Its totient is φ = 202121000200126.

The previous prime is 202121000200099. The next prime is 202121000200169. The reversal of 202121000200127 is 721002000121202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202121000200127 - 2²⁶ = 202120933091263 is a prime.

It is a super-2 number, since 2×202121000200127² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202121000200099 and 202121000200108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202121000206127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060500100063 + 101060500100064.

It is an arithmetic number, because the mean of its divisors is an integer number (101060500100064).

Almost surely, 2^{202121000200127} is an apocalyptic number.

202121000200127 is a deficient number, since it is larger than the sum of its proper divisors (1).

202121000200127 is an equidigital number, since it uses as much as digits as its factorization.

202121000200127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 202121000200127 its reverse (721002000121202), we get a palindrome (923123000321329).

The spelling of 202121000200127 in words is "two hundred two trillion, one hundred twenty-one billion, two hundred thousand, one hundred twenty-seven".