121121110011001 has 8 divisors (see below), whose sum is σ = 121478426048000. Its totient is φ = 120763852626960.

The previous prime is 121121110010959. The next prime is 121121110011067. The reversal of 121121110011001 is 100110011121121.

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 121121110011001 - 2¹⁷ = 121121109879929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121121110021001) 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, 10525335 + ... + 18788956.

It is an arithmetic number, because the mean of its divisors is an integer number (15184803256000).

Almost surely, 2^{121121110011001} is an apocalyptic number.

It is an amenable number.

121121110011001 is a deficient number, since it is larger than the sum of its proper divisors (357316036999).

121121110011001 is a wasteful number, since it uses less digits than its factorization.

121121110011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29326479.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 121121110011001 its reverse (100110011121121), we get a palindrome (221231121132122).

The spelling of 121121110011001 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, one hundred ten million, eleven thousand, one".