11222111444 has 6 divisors (see below), whose sum is σ = 19638695034. Its totient is φ = 5611055720.

The previous prime is 11222111437. The next prime is 11222111449. The reversal of 11222111444 is 44411122211.

It can be written as a sum of positive squares in only one way, i.e., 8549221444 + 2672890000 = 92462^2 + 51700^2 .

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222111449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402763927 + ... + 1402763934.

It is an arithmetic number, because the mean of its divisors is an integer number (3273115839).

Almost surely, 2^11222111444 is an apocalyptic number.

It is an amenable number.

11222111444 is a deficient number, since it is larger than the sum of its proper divisors (8416583590).

11222111444 is a wasteful number, since it uses less digits than its factorization.

11222111444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805527865 (or 2805527863 counting only the distinct ones).

The product of its digits is 512, while the sum is 23.

Adding to 11222111444 its reverse (44411122211), we get a palindrome (55633233655).

The spelling of 11222111444 in words is "eleven billion, two hundred twenty-two million, one hundred eleven thousand, four hundred forty-four".