11122404444 has 36 divisors (see below), whose sum is σ = 28262183040. Its totient is φ = 3688055040.

The previous prime is 11122404443. The next prime is 11122404497. The reversal of 11122404444 is 44440422111.

It is a happy number.

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

It is a super-3 number, since 3×11122404444³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122404443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 801909 + ... + 815660.

It is an arithmetic number, because the mean of its divisors is an integer number (785060640).

Almost surely, 2^11122404444 is an apocalyptic number.

It is an amenable number.

11122404444 is an abundant number, since it is smaller than the sum of its proper divisors (17139778596).

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

11122404444 is a wasteful number, since it uses less digits than its factorization.

11122404444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617770 (or 1617765 counting only the distinct ones).

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

Adding to 11122404444 its reverse (44440422111), we get a palindrome (55562826555).

The spelling of 11122404444 in words is "eleven billion, one hundred twenty-two million, four hundred four thousand, four hundred forty-four".