121422242224121 has 4 divisors (see below), whose sum is σ = 128564727060852. Its totient is φ = 114279757387392.

The previous prime is 121422242224103. The next prime is 121422242224133.

121422242224121 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101484186532096 + 19938055692025 = 10073936^2 + 4465205^2 .

It is a cyclic number.

It is not a de Polignac number, because 121422242224121 - 2¹⁰ = 121422242223097 is a prime.

It is a super-3 number, since 3×121422242224121³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121422242221121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3571242418340 + ... + 3571242418373.

It is an arithmetic number, because the mean of its divisors is an integer number (32141181765213).

Almost surely, 2^{121422242224121} is an apocalyptic number.

It is an amenable number.

121422242224121 is a deficient number, since it is larger than the sum of its proper divisors (7142484836731).

121422242224121 is an equidigital number, since it uses as much as digits as its factorization.

121422242224121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7142484836730.

The product of its digits is 16384, while the sum is 32.

The spelling of 121422242224121 in words is "one hundred twenty-one trillion, four hundred twenty-two billion, two hundred forty-two million, two hundred twenty-four thousand, one hundred twenty-one".