22111144004 has 6 divisors (see below), whose sum is σ = 38694502014. Its totient is φ = 11055572000.

The previous prime is 22111143949. The next prime is 22111144049. The reversal of 22111144004 is 40044111122.

It can be written as a sum of positive squares in only one way, i.e., 20380417600 + 1730726404 = 142760^2 + 41602^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2763892997 + ... + 2763893004.

It is an arithmetic number, because the mean of its divisors is an integer number (6449083669).

Almost surely, 2^22111144004 is an apocalyptic number.

It is an amenable number.

22111144004 is a deficient number, since it is larger than the sum of its proper divisors (16583358010).

22111144004 is a wasteful number, since it uses less digits than its factorization.

22111144004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527786005 (or 5527786003 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22111144004 its reverse (40044111122), we get a palindrome (62155255126).

The spelling of 22111144004 in words is "twenty-two billion, one hundred eleven million, one hundred forty-four thousand, four".