121141100121 has 4 divisors (see below), whose sum is σ = 161521466832. Its totient is φ = 80760733412.

The previous prime is 121141100089. The next prime is 121141100167. The reversal of 121141100121 is 121001141121.

It is a happy number.

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 121141100121 - 2⁵ = 121141100089 is a prime.

It is a super-3 number, since 3×121141100121³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121141100121.

It is not an unprimeable number, because it can be changed into a prime (121141100191) 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 3 ways as a sum of consecutive naturals, for example, 20190183351 + ... + 20190183356.

It is an arithmetic number, because the mean of its divisors is an integer number (40380366708).

Almost surely, 2^121141100121 is an apocalyptic number.

It is an amenable number.

121141100121 is a deficient number, since it is larger than the sum of its proper divisors (40380366711).

121141100121 is an equidigital number, since it uses as much as digits as its factorization.

121141100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40380366710.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121141100121 its reverse (121001141121), we get a palindrome (242142241242).

The spelling of 121141100121 in words is "one hundred twenty-one billion, one hundred forty-one million, one hundred thousand, one hundred twenty-one".