121110201121 has 24 divisors (see below), whose sum is σ = 149940244800. Its totient is φ = 95783478336.

The previous prime is 121110201119. The next prime is 121110201133. The reversal of 121110201121 is 121102011121.

It is a happy number.

It is not a de Polignac number, because 121110201121 - 2¹ = 121110201119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110201101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2995386 + ... + 3035548.

It is an arithmetic number, because the mean of its divisors is an integer number (6247510200).

Almost surely, 2^121110201121 is an apocalyptic number.

It is an amenable number.

121110201121 is a deficient number, since it is larger than the sum of its proper divisors (28830043679).

121110201121 is a wasteful number, since it uses less digits than its factorization.

121110201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42745 (or 42732 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121110201121 its reverse (121102011121), we get a palindrome (242212212242).

The spelling of 121110201121 in words is "one hundred twenty-one billion, one hundred ten million, two hundred one thousand, one hundred twenty-one".