121112021333 has 4 divisors (see below), whose sum is σ = 128236257900. Its totient is φ = 113987784768.

The previous prime is 121112021321. The next prime is 121112021377. The reversal of 121112021333 is 333120211121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 333120211121 = 103 ⋅3234176807.

It can be written as a sum of positive squares in 2 ways, for example, as 48674066884 + 72437954449 = 220622^2 + 269143^2 .

It is a cyclic number.

It is not a de Polignac number, because 121112021333 - 2⁶ = 121112021269 is a prime.

It is a super-2 number, since 2×121112021333² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112021533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3562118258 + ... + 3562118291.

It is an arithmetic number, because the mean of its divisors is an integer number (32059064475).

Almost surely, 2^121112021333 is an apocalyptic number.

It is an amenable number.

121112021333 is a deficient number, since it is larger than the sum of its proper divisors (7124236567).

121112021333 is an equidigital number, since it uses as much as digits as its factorization.

121112021333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7124236566.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121112021333 its reverse (333120211121), we get a palindrome (454232232454).

The spelling of 121112021333 in words is "one hundred twenty-one billion, one hundred twelve million, twenty-one thousand, three hundred thirty-three".