201111010111121 has 16 divisors (see below), whose sum is σ = 220032525311808. Its totient is φ = 182296169352000.

The previous prime is 201111010111087. The next prime is 201111010111153. The reversal of 201111010111121 is 121111010111102.

It is not a de Polignac number, because 201111010111121 - 2²² = 201111005916817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201111010111096 and 201111010111105.

It is not an unprimeable number, because it can be changed into a prime (201111010111421) 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, 12251846 + ... + 23501696.

It is an arithmetic number, because the mean of its divisors is an integer number (13752032831988).

Almost surely, 2^{201111010111121} is an apocalyptic number.

It is an amenable number.

201111010111121 is a deficient number, since it is larger than the sum of its proper divisors (18921515200687).

201111010111121 is a wasteful number, since it uses less digits than its factorization.

201111010111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11254592.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 201111010111121 its reverse (121111010111102), we get a palindrome (322222020222223).

The spelling of 201111010111121 in words is "two hundred one trillion, one hundred eleven billion, ten million, one hundred eleven thousand, one hundred twenty-one".