121110120212001 has 16 divisors (see below), whose sum is σ = 170979219054144. Its totient is φ = 75990563300864.

The previous prime is 121110120211999. The next prime is 121110120212071. The reversal of 121110120212001 is 100212021011121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121110120212001 - 2¹ = 121110120211999 is a prime.

It is a super-2 number, since 2×121110120212001² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121110120212071) 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, 64231186 + ... + 66089828.

It is an arithmetic number, because the mean of its divisors is an integer number (10686201190884).

Almost surely, 2^{121110120212001} is an apocalyptic number.

It is an amenable number.

121110120212001 is a deficient number, since it is larger than the sum of its proper divisors (49869098842143).

121110120212001 is a wasteful number, since it uses less digits than its factorization.

121110120212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136320.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121110120212001 its reverse (100212021011121), we get a palindrome (221322141223122).

The spelling of 121110120212001 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred twenty million, two hundred twelve thousand, one".