1100322121018 has 4 divisors (see below), whose sum is σ = 1650483181530. Its totient is φ = 550161060508.

The previous prime is 1100322120983. The next prime is 1100322121079. The reversal of 1100322121018 is 8101212230011.

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., 934398689449 + 165923431569 = 966643^2 + 407337^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1100322121018.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275080530253 + ... + 275080530256.

Almost surely, 2^{1100322121018} is an apocalyptic number.

1100322121018 is a deficient number, since it is larger than the sum of its proper divisors (550161060512).

1100322121018 is an equidigital number, since it uses as much as digits as its factorization.

1100322121018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550161060511.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 1100322121018 its reverse (8101212230011), we get a palindrome (9201534351029).

The spelling of 1100322121018 in words is "one trillion, one hundred billion, three hundred twenty-two million, one hundred twenty-one thousand, eighteen".