121122223133 has 4 divisors (see below), whose sum is σ = 121123039968. Its totient is φ = 121121406300.

The previous prime is 121122223127. The next prime is 121122223181. The reversal of 121122223133 is 331322221121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 331322221121 = 8353 ⋅39665057.

It is a cyclic number.

It is not a de Polignac number, because 121122223133 - 2²⁰ = 121121174557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121122223099 and 121122223108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122223333) 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, 116393 + ... + 505758.

It is an arithmetic number, because the mean of its divisors is an integer number (30280759992).

Almost surely, 2^121122223133 is an apocalyptic number.

It is an amenable number.

121122223133 is a deficient number, since it is larger than the sum of its proper divisors (816835).

121122223133 is an equidigital number, since it uses as much as digits as its factorization.

121122223133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816834.

The product of its digits is 864, while the sum is 23.

Adding to 121122223133 its reverse (331322221121), we get a palindrome (452444444254).

The spelling of 121122223133 in words is "one hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-three thousand, one hundred thirty-three".