121112133013021 has 32 divisors (see below), whose sum is σ = 135174501302400. Its totient is φ = 107837552240640.

The previous prime is 121112133013019. The next prime is 121112133013061. The reversal of 121112133013021 is 120310331211121.

It is not a de Polignac number, because 121112133013021 - 2¹ = 121112133013019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121112133012983 and 121112133013001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112133013061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 719403826 + ... + 719572156.

It is an arithmetic number, because the mean of its divisors is an integer number (4224203165700).

Almost surely, 2^{121112133013021} is an apocalyptic number.

It is an amenable number.

121112133013021 is a deficient number, since it is larger than the sum of its proper divisors (14062368289379).

121112133013021 is a wasteful number, since it uses less digits than its factorization.

121112133013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171469.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 121112133013021 its reverse (120310331211121), we get a palindrome (241422464224142).

The spelling of 121112133013021 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred thirty-three million, thirteen thousand, twenty-one".