1122144444 has 36 divisors (see below), whose sum is σ = 2934345960. Its totient is φ = 361149600.

The previous prime is 1122144391. The next prime is 1122144481. The reversal of 1122144444 is 4444412211.

It is a happy number.

1122144444 is a `hidden beast` number, since 1 + 1 + 2 + 214 + 4 + 444 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

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 in 11 ways as a sum of consecutive naturals, for example, 536382 + ... + 538469.

It is an arithmetic number, because the mean of its divisors is an integer number (81509610).

Almost surely, 2^1122144444 is an apocalyptic number.

It is an amenable number.

1122144444 is an abundant number, since it is smaller than the sum of its proper divisors (1812201516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122144444 is a wasteful number, since it uses less digits than its factorization.

1122144444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074890 (or 1074885 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 1122144444 is about 33498.4245002657. The cubic root of 1122144444 is about 1039.1611961858.

Adding to 1122144444 its reverse (4444412211), we get a palindrome (5566556655).

The spelling of 1122144444 in words is "one billion, one hundred twenty-two million, one hundred forty-four thousand, four hundred forty-four".