201201211000121 has 16 divisors (see below), whose sum is σ = 214775187792000. Its totient is φ = 187941339936000.

The previous prime is 201201211000091. The next prime is 201201211000123. The reversal of 201201211000121 is 121000112102102.

It is a cyclic number.

It is not a de Polignac number, because 201201211000121 - 2³⁸ = 200926333093177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201201211000096 and 201201211000105.

It is not an unprimeable number, because it can be changed into a prime (201201211000123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217062221 + ... + 217987178.

It is an arithmetic number, because the mean of its divisors is an integer number (13423449237000).

Almost surely, 2^{201201211000121} is an apocalyptic number.

It is an amenable number.

201201211000121 is a deficient number, since it is larger than the sum of its proper divisors (13573976791879).

201201211000121 is a wasteful number, since it uses less digits than its factorization.

201201211000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435049760.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201201211000121 its reverse (121000112102102), we get a palindrome (322201323102223).

The spelling of 201201211000121 in words is "two hundred one trillion, two hundred one billion, two hundred eleven million, one hundred twenty-one", and thus it is an aban number.