201111020121 has 8 divisors (see below), whose sum is σ = 292525120224. Its totient is φ = 121885466720.

The previous prime is 201111020107. The next prime is 201111020129. The reversal of 201111020121 is 121020111102.

201111020121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201111020121 - 2¹⁰ = 201111019097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201111020097 and 201111020106.

It is not an unprimeable number, because it can be changed into a prime (201111020129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3047136636 + ... + 3047136701.

It is an arithmetic number, because the mean of its divisors is an integer number (36565640028).

Almost surely, 2^201111020121 is an apocalyptic number.

It is an amenable number.

201111020121 is a deficient number, since it is larger than the sum of its proper divisors (91414100103).

201111020121 is a wasteful number, since it uses less digits than its factorization.

201111020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6094273351.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201111020121 its reverse (121020111102), we get a palindrome (322131131223).

The spelling of 201111020121 in words is "two hundred one billion, one hundred eleven million, twenty thousand, one hundred twenty-one".