121112221033 has 8 divisors (see below), whose sum is σ = 123449600456. Its totient is φ = 118793174400.

The previous prime is 121112221019. The next prime is 121112221063. The reversal of 121112221033 is 330122211121.

It can be written as a sum of positive squares in 4 ways, for example, as 239878144 + 120872342889 = 15488^2 + 347667^2 .

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 121112221033 - 2¹⁷ = 121112089961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121112221033.

It is not an unprimeable number, because it can be changed into a prime (121112221003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4569858 + ... + 4596283.

It is an arithmetic number, because the mean of its divisors is an integer number (15431200057).

Almost surely, 2^121112221033 is an apocalyptic number.

It is an amenable number.

121112221033 is a deficient number, since it is larger than the sum of its proper divisors (2337379423).

121112221033 is an equidigital number, since it uses as much as digits as its factorization.

121112221033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9166395.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121112221033 its reverse (330122211121), we get a palindrome (451234432154).

The spelling of 121112221033 in words is "one hundred twenty-one billion, one hundred twelve million, two hundred twenty-one thousand, thirty-three".