1121202223 has 2 divisors, whose sum is σ = 1121202224. Its totient is φ = 1121202222.

The previous prime is 1121202151. The next prime is 1121202281. The reversal of 1121202223 is 3222021211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121202223 - 2¹⁷ = 1121071151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121202197 and 1121202206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121202923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560601111 + 560601112.

It is an arithmetic number, because the mean of its divisors is an integer number (560601112).

Almost surely, 2^1121202223 is an apocalyptic number.

1121202223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121202223 is an equidigital number, since it uses as much as digits as its factorization.

1121202223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1121202223 is about 33484.3578854366. The cubic root of 1121202223 is about 1038.8702670107.

Adding to 1121202223 its reverse (3222021211), we get a palindrome (4343223434).

The spelling of 1121202223 in words is "one billion, one hundred twenty-one million, two hundred two thousand, two hundred twenty-three".