121021242120121 has 8 divisors (see below), whose sum is σ = 138318885080064. Its totient is φ = 103725822681600.

The previous prime is 121021242120067. The next prime is 121021242120127.

121021242120121 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 121021242120121 - 2¹⁵ = 121021242087353 is a prime.

It is a super-2 number, since 2×121021242120121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121021242120092 and 121021242120101.

It is not an unprimeable number, because it can be changed into a prime (121021242120127) 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, 555763720 + ... + 555981433.

It is an arithmetic number, because the mean of its divisors is an integer number (17289860635008).

Almost surely, 2^{121021242120121} is an apocalyptic number.

It is an amenable number.

121021242120121 is a deficient number, since it is larger than the sum of its proper divisors (17297642959943).

121021242120121 is a wasteful number, since it uses less digits than its factorization.

121021242120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111760711.

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 121021242120121 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred forty-two million, one hundred twenty thousand, one hundred twenty-one".