11223021044 has 6 divisors (see below), whose sum is σ = 19640286834. Its totient is φ = 5611510520.

The previous prime is 11223021037. The next prime is 11223021071. The reversal of 11223021044 is 44012032211.

It can be written as a sum of positive squares in only one way, i.e., 6242896144 + 4980124900 = 79012^2 + 70570^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402877627 + ... + 1402877634.

It is an arithmetic number, because the mean of its divisors is an integer number (3273381139).

Almost surely, 2^11223021044 is an apocalyptic number.

It is an amenable number.

11223021044 is a deficient number, since it is larger than the sum of its proper divisors (8417265790).

11223021044 is a wasteful number, since it uses less digits than its factorization.

11223021044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805755265 (or 2805755263 counting only the distinct ones).

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

Adding to 11223021044 its reverse (44012032211), we get a palindrome (55235053255).

The spelling of 11223021044 in words is "eleven billion, two hundred twenty-three million, twenty-one thousand, forty-four".