1121230212233 has 4 divisors (see below), whose sum is σ = 1121451062340. Its totient is φ = 1121009362128.

The previous prime is 1121230212199. The next prime is 1121230212253. The reversal of 1121230212233 is 3322120321211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 940564409929 + 180665802304 = 969827^2 + 425048^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121230212233 - 2²⁶ = 1121163103369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121230212199 and 1121230212208.

It is not an unprimeable number, because it can be changed into a prime (1121230212253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110417438 + ... + 110427591.

It is an arithmetic number, because the mean of its divisors is an integer number (280362765585).

Almost surely, 2^{1121230212233} is an apocalyptic number.

It is an amenable number.

1121230212233 is a deficient number, since it is larger than the sum of its proper divisors (220850107).

1121230212233 is an equidigital number, since it uses as much as digits as its factorization.

1121230212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220850106.

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

Adding to 1121230212233 its reverse (3322120321211), we get a palindrome (4443350533444).

The spelling of 1121230212233 in words is "one trillion, one hundred twenty-one billion, two hundred thirty million, two hundred twelve thousand, two hundred thirty-three".