11221203044 has 24 divisors (see below), whose sum is σ = 20318490360. Its totient is φ = 5416001024.

The previous prime is 11221203031. The next prime is 11221203079. The reversal of 11221203044 is 44030212211.

It can be written as a sum of positive squares in 4 ways, for example, as 3736876900 + 7484326144 = 61130^2 + 86512^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 897782 + ... + 910194.

It is an arithmetic number, because the mean of its divisors is an integer number (846603765).

Almost surely, 2^11221203044 is an apocalyptic number.

It is an amenable number.

11221203044 is a deficient number, since it is larger than the sum of its proper divisors (9097287316).

11221203044 is a wasteful number, since it uses less digits than its factorization.

11221203044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20239 (or 20237 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11221203044 its reverse (44030212211), we get a palindrome (55251415255).

The spelling of 11221203044 in words is "eleven billion, two hundred twenty-one million, two hundred three thousand, forty-four".