121101011022121 has 8 divisors (see below), whose sum is σ = 130741701527304. Its totient is φ = 111506781676800.

The previous prime is 121101011022077. The next prime is 121101011022133. The reversal of 121101011022121 is 121220110101121.

It can be written as a sum of positive squares in 4 ways, for example, as 57867422700096 + 63233588322025 = 7607064^2 + 7951955^2 .

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 121101011022121 - 2³⁷ = 120963572068649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121101011022095 and 121101011022104.

It is not an unprimeable number, because it can be changed into a prime (121101011022181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11615284546 + ... + 11615294971.

It is an arithmetic number, because the mean of its divisors is an integer number (16342712690913).

Almost surely, 2^{121101011022121} is an apocalyptic number.

It is an amenable number.

121101011022121 is a deficient number, since it is larger than the sum of its proper divisors (9640690505183).

121101011022121 is a wasteful number, since it uses less digits than its factorization.

121101011022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23230579931.

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

Adding to 121101011022121 its reverse (121220110101121), we get a palindrome (242321121123242).

The spelling of 121101011022121 in words is "one hundred twenty-one trillion, one hundred one billion, eleven million, twenty-two thousand, one hundred twenty-one".