1121122202 has 4 divisors (see below), whose sum is σ = 1681683306. Its totient is φ = 560561100.

The previous prime is 1121122201. The next prime is 1121122253. The reversal of 1121122202 is 2022211211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2022211211 = 19 ⋅106432169.

It can be written as a sum of positive squares in only one way, i.e., 774008041 + 347114161 = 27821^2 + 18631^2 .

It is not an unprimeable number, because it can be changed into a prime (1121122201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280280549 + ... + 280280552.

Almost surely, 2^1121122202 is an apocalyptic number.

1121122202 is a deficient number, since it is larger than the sum of its proper divisors (560561104).

1121122202 is an equidigital number, since it uses as much as digits as its factorization.

1121122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560561103.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1121122202 is about 33483.1629628982. The cubic root of 1121122202 is about 1038.8455514528.

Adding to 1121122202 its reverse (2022211211), we get a palindrome (3143333413).

The spelling of 1121122202 in words is "one billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred two".