201121021210127 has 2 divisors, whose sum is σ = 201121021210128. Its totient is φ = 201121021210126.

The previous prime is 201121021210099. The next prime is 201121021210133. The reversal of 201121021210127 is 721012120121102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201121021210127 - 2⁶ = 201121021210063 is a prime.

It is a super-2 number, since 2×201121021210127² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201121021210147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560510605063 + 100560510605064.

It is an arithmetic number, because the mean of its divisors is an integer number (100560510605064).

Almost surely, 2^{201121021210127} is an apocalyptic number.

201121021210127 is a deficient number, since it is larger than the sum of its proper divisors (1).

201121021210127 is an equidigital number, since it uses as much as digits as its factorization.

201121021210127 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 23.

Adding to 201121021210127 its reverse (721012120121102), we get a palindrome (922133141331229).

The spelling of 201121021210127 in words is "two hundred one trillion, one hundred twenty-one billion, twenty-one million, two hundred ten thousand, one hundred twenty-seven".