201100112211121 has 4 divisors (see below), whose sum is σ = 201100232100672. Its totient is φ = 201099992321572.

The previous prime is 201100112211091. The next prime is 201100112211253. The reversal of 201100112211121 is 121112211001102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201100112211121 - 2⁹ = 201100112210609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201100112211095 and 201100112211104.

It is not an unprimeable number, because it can be changed into a prime (201100112281121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57392485 + ... + 60795538.

It is an arithmetic number, because the mean of its divisors is an integer number (50275058025168).

Almost surely, 2^{201100112211121} is an apocalyptic number.

It is an amenable number.

201100112211121 is a deficient number, since it is larger than the sum of its proper divisors (119889551).

201100112211121 is a wasteful number, since it uses less digits than its factorization.

201100112211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119889550.

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

Adding to 201100112211121 its reverse (121112211001102), we get a palindrome (322212323212223).

The spelling of 201100112211121 in words is "two hundred one trillion, one hundred billion, one hundred twelve million, two hundred eleven thousand, one hundred twenty-one".