121011210020001 has 16 divisors (see below), whose sum is σ = 184399894678400. Its totient is φ = 69148565232768.

The previous prime is 121011210019963. The next prime is 121011210020027. The reversal of 121011210020001 is 100020012110121.

It is not a de Polignac number, because 121011210020001 - 2⁹ = 121011210019489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121011210020201) 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, 26933446 + ... + 31103583.

It is an arithmetic number, because the mean of its divisors is an integer number (11524993417400).

Almost surely, 2^{121011210020001} is an apocalyptic number.

It is an amenable number.

121011210020001 is a deficient number, since it is larger than the sum of its proper divisors (63388684658399).

121011210020001 is an equidigital number, since it uses as much as digits as its factorization.

121011210020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58136328.

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

Adding to 121011210020001 its reverse (100020012110121), we get a palindrome (221031222130122).

It can be divided in two parts, 121011 and 210020001, that added together give a palindrome (210141012).

The spelling of 121011210020001 in words is "one hundred twenty-one trillion, eleven billion, two hundred ten million, twenty thousand, one".