121020110012001 has 32 divisors (see below), whose sum is σ = 163962820231168. Its totient is φ = 79391793055680.

The previous prime is 121020110011991. The next prime is 121020110012069. The reversal of 121020110012001 is 100210011020121.

It is not a de Polignac number, because 121020110012001 - 2⁷ = 121020110011873 is a prime.

It is a super-3 number, since 3×121020110012001³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121020110011001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20396955 + ... + 25652991.

It is an arithmetic number, because the mean of its divisors is an integer number (5123838132224).

Almost surely, 2^{121020110012001} is an apocalyptic number.

It is an amenable number.

121020110012001 is a deficient number, since it is larger than the sum of its proper divisors (42942710219167).

121020110012001 is a wasteful number, since it uses less digits than its factorization.

121020110012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5256661.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121020110012001 its reverse (100210011020121), we get a palindrome (221230121032122).

The spelling of 121020110012001 in words is "one hundred twenty-one trillion, twenty billion, one hundred ten million, twelve thousand, one".