201000121102105 has 32 divisors (see below), whose sum is σ = 264258498913920. Its totient is φ = 145858801489920.

The previous prime is 201000121102007. The next prime is 201000121102117. The reversal of 201000121102105 is 501201121000102.

It is not a de Polignac number, because 201000121102105 - 2¹⁵ = 201000121069337 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162291 + ... + 20050600.

It is an arithmetic number, because the mean of its divisors is an integer number (8258078091060).

Almost surely, 2^{201000121102105} is an apocalyptic number.

It is an amenable number.

201000121102105 is a deficient number, since it is larger than the sum of its proper divisors (63258377811815).

201000121102105 is a wasteful number, since it uses less digits than its factorization.

201000121102105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20215561.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 201000121102105 its reverse (501201121000102), we get a palindrome (702201242102207).

The spelling of 201000121102105 in words is "two hundred one trillion, one hundred twenty-one million, one hundred two thousand, one hundred five".