1122205345 has 8 divisors (see below), whose sum is σ = 1349234280. Its totient is φ = 896039040.

The previous prime is 1122205327. The next prime is 1122205387. The reversal of 1122205345 is 5435022211.

1122205345 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in 4 ways, for example, as 296907361 + 825297984 = 17231^2 + 28728^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1122205345 - 2⁵ = 1122205313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212790 + ... + 217999.

It is an arithmetic number, because the mean of its divisors is an integer number (168654285).

Almost surely, 2^1122205345 is an apocalyptic number.

It is an amenable number.

1122205345 is a deficient number, since it is larger than the sum of its proper divisors (227028935).

1122205345 is an equidigital number, since it uses as much as digits as its factorization.

1122205345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431315.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1122205345 is about 33499.3335008325. Note that the first 3 decimals coincide. The cubic root of 1122205345 is about 1039.1799949573.

Adding to 1122205345 its reverse (5435022211), we get a palindrome (6557227556).

The spelling of 1122205345 in words is "one billion, one hundred twenty-two million, two hundred five thousand, three hundred forty-five".