1121220222202 has 4 divisors (see below), whose sum is σ = 1681830333306. Its totient is φ = 560610111100.

The previous prime is 1121220222193. The next prime is 1121220222233. The reversal of 1121220222202 is 2022220221211.

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

It can be written as a sum of positive squares in only one way, i.e., 675932266801 + 445287955401 = 822151^2 + 667299^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1121220222202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280305055549 + ... + 280305055552.

Almost surely, 2^{1121220222202} is an apocalyptic number.

1121220222202 is a deficient number, since it is larger than the sum of its proper divisors (560610111104).

1121220222202 is an equidigital number, since it uses as much as digits as its factorization.

1121220222202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560610111103.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1121220222202 its reverse (2022220221211), we get a palindrome (3143440443413).

Subtracting 1121220222202 from its reverse (2022220221211), we obtain a palindrome (900999999009).

The spelling of 1121220222202 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, two hundred twenty-two thousand, two hundred two".