121121223313233 has 64 divisors (see below), whose sum is σ = 191883512217600. Its totient is φ = 66990609692160.

The previous prime is 121121223313199. The next prime is 121121223313297. The reversal of 121121223313233 is 332313322121121.

It is a happy number.

It is not a de Polignac number, because 121121223313233 - 2⁶ = 121121223313169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121121223313233.

It is not an unprimeable number, because it can be changed into a prime (121121223333233) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 320034928 + ... + 320413166.

It is an arithmetic number, because the mean of its divisors is an integer number (2998179878400).

Almost surely, 2^{121121223313233} is an apocalyptic number.

121121223313233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121121223313233 is a deficient number, since it is larger than the sum of its proper divisors (70762288904367).

121121223313233 is a wasteful number, since it uses less digits than its factorization.

121121223313233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386742.

The product of its digits is 7776, while the sum is 30.

Adding to 121121223313233 its reverse (332313322121121), we get a palindrome (453434545434354).

The spelling of 121121223313233 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred twenty-three million, three hundred thirteen thousand, two hundred thirty-three".