11013221012 has 6 divisors (see below), whose sum is σ = 19273136778. Its totient is φ = 5506610504.

The previous prime is 11013220991. The next prime is 11013221033. The reversal of 11013221012 is 21012231011.

It is an interprime number because it is at equal distance from previous prime (11013220991) and next prime (11013221033).

It can be written as a sum of positive squares in only one way, i.e., 8904941956 + 2108279056 = 94366^2 + 45916^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1376652623 + ... + 1376652630.

It is an arithmetic number, because the mean of its divisors is an integer number (3212189463).

Almost surely, 2^11013221012 is an apocalyptic number.

It is an amenable number.

11013221012 is a deficient number, since it is larger than the sum of its proper divisors (8259915766).

11013221012 is a wasteful number, since it uses less digits than its factorization.

11013221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753305257 (or 2753305255 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11013221012 its reverse (21012231011), we get a palindrome (32025452023).

Subtracting 11013221012 from its reverse (21012231011), we obtain a palindrome (9999009999).

The spelling of 11013221012 in words is "eleven billion, thirteen million, two hundred twenty-one thousand, twelve".