121010112001021 has 8 divisors (see below), whose sum is σ = 128128519794240. Its totient is φ = 113891722642368.

The previous prime is 121010112000983. The next prime is 121010112001057. The reversal of 121010112001021 is 120100211010121.

It is a happy number.

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 121010112001021 - 2²⁵ = 121010078446589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121010112000992 and 121010112001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010112001721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10280490 + ... + 18646948.

It is an arithmetic number, because the mean of its divisors is an integer number (16016064974280).

Almost surely, 2^{121010112001021} is an apocalyptic number.

It is an amenable number.

121010112001021 is a deficient number, since it is larger than the sum of its proper divisors (7118407793219).

121010112001021 is an equidigital number, since it uses as much as digits as its factorization.

121010112001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9217283.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121010112001021 its reverse (120100211010121), we get a palindrome (241110323011142).

The spelling of 121010112001021 in words is "one hundred twenty-one trillion, ten billion, one hundred twelve million, one thousand, twenty-one".