1121222112202 has 4 divisors (see below), whose sum is σ = 1681833168306. Its totient is φ = 560611056100.

The previous prime is 1121222112169. The next prime is 1121222112211. The reversal of 1121222112202 is 2022112221211.

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., 1100298200401 + 20923911801 = 1048951^2 + 144651^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1121222112202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280305528049 + ... + 280305528052.

Almost surely, 2^{1121222112202} is an apocalyptic number.

1121222112202 is a deficient number, since it is larger than the sum of its proper divisors (560611056104).

1121222112202 is an equidigital number, since it uses as much as digits as its factorization.

1121222112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560611056103.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1121222112202 its reverse (2022112221211), we get a palindrome (3143334333413).

The spelling of 1121222112202 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred two".