1121123220229 has 2 divisors, whose sum is σ = 1121123220230. Its totient is φ = 1121123220228.

The previous prime is 1121123220221. The next prime is 1121123220289. The reversal of 1121123220229 is 9220223211211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 757984408129 + 363138812100 = 870623^2 + 602610^2 .

It is an emirp because it is prime and its reverse (9220223211211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121123220229 - 2³ = 1121123220221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121123220197 and 1121123220206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121123220221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560561610114 + 560561610115.

It is an arithmetic number, because the mean of its divisors is an integer number (560561610115).

Almost surely, 2^{1121123220229} is an apocalyptic number.

It is an amenable number.

1121123220229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121123220229 is an equidigital number, since it uses as much as digits as its factorization.

1121123220229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 1121123220229 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-three million, two hundred twenty thousand, two hundred twenty-nine".