121133131121121 has 16 divisors (see below), whose sum is σ = 184584772345728. Its totient is φ = 69218574508800.

The previous prime is 121133131121077. The next prime is 121133131121129. The reversal of 121133131121121 is 121121131331121.

It is not a de Polignac number, because 121133131121121 - 2⁷ = 121133131120993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121133131121091 and 121133131121100.

It is not an unprimeable number, because it can be changed into a prime (121133131121129) 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, 10708840 + ... + 18893001.

It is an arithmetic number, because the mean of its divisors is an integer number (11536548271608).

Almost surely, 2^{121133131121121} is an apocalyptic number.

It is an amenable number.

121133131121121 is a deficient number, since it is larger than the sum of its proper divisors (63451641224607).

121133131121121 is a wasteful number, since it uses less digits than its factorization.

121133131121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29796712.

The product of its digits is 216, while the sum is 24.

Adding to 121133131121121 its reverse (121121131331121), we get a palindrome (242254262452242).

The spelling of 121133131121121 in words is "one hundred twenty-one trillion, one hundred thirty-three billion, one hundred thirty-one million, one hundred twenty-one thousand, one hundred twenty-one".