201211100211121 has 32 divisors (see below), whose sum is σ = 270159432673536. Its totient is φ = 144726262272000.

The previous prime is 201211100211083. The next prime is 201211100211127. The reversal of 201211100211121 is 121112001112102.

It is a cyclic number.

It is not a de Polignac number, because 201211100211121 - 2⁷ = 201211100210993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201211100211095 and 201211100211104.

It is not an unprimeable number, because it can be changed into a prime (201211100211127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163110081 + ... + 164339041.

It is an arithmetic number, because the mean of its divisors is an integer number (8442482271048).

Almost surely, 2^{201211100211121} is an apocalyptic number.

It is an amenable number.

201211100211121 is a deficient number, since it is larger than the sum of its proper divisors (68948332462415).

201211100211121 is a wasteful number, since it uses less digits than its factorization.

201211100211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392553.

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

Adding to 201211100211121 its reverse (121112001112102), we get a palindrome (322323101323223).

The spelling of 201211100211121 in words is "two hundred one trillion, two hundred eleven billion, one hundred million, two hundred eleven thousand, one hundred twenty-one".