1100321212552 has 16 divisors (see below), whose sum is σ = 2063173478940. Its totient is φ = 550141618176.

The previous prime is 1100321212481. The next prime is 1100321212561. The reversal of 1100321212552 is 2552121230011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1097076087396 + 3245125156 = 1047414^2 + 56966^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2125713 + ... + 2592160.

Almost surely, 2^{1100321212552} is an apocalyptic number.

It is an amenable number.

1100321212552 is a deficient number, since it is larger than the sum of its proper divisors (962852266388).

1100321212552 is a wasteful number, since it uses less digits than its factorization.

1100321212552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4747032 (or 4747028 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 1100321212552 its reverse (2552121230011), we get a palindrome (3652442442563).

The spelling of 1100321212552 in words is "one trillion, one hundred billion, three hundred twenty-one million, two hundred twelve thousand, five hundred fifty-two".