1122021233 has 4 divisors (see below), whose sum is σ = 1188022500. Its totient is φ = 1056019968.

The previous prime is 1122021227. The next prime is 1122021239. The reversal of 1122021233 is 3321202211.

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

It is an interprime number because it is at equal distance from previous prime (1122021227) and next prime (1122021239).

It can be written as a sum of positive squares in 2 ways, for example, as 917302369 + 204718864 = 30287^2 + 14308^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122021233 - 2¹⁶ = 1121955697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 66001249 = 1122021233 / (1 + 1 + 2 + 2 + 0 + 2 + 1 + 2 + 3 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122021239) 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, 33000608 + ... + 33000641.

It is an arithmetic number, because the mean of its divisors is an integer number (297005625).

Almost surely, 2^1122021233 is an apocalyptic number.

It is an amenable number.

1122021233 is a deficient number, since it is larger than the sum of its proper divisors (66001267).

1122021233 is an equidigital number, since it uses as much as digits as its factorization.

1122021233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66001266.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1122021233 is about 33496.5853931412. The cubic root of 1122021233 is about 1039.1231616359.

Adding to 1122021233 its reverse (3321202211), we get a palindrome (4443223444).

The spelling of 1122021233 in words is "one billion, one hundred twenty-two million, twenty-one thousand, two hundred thirty-three".