22131012044 has 12 divisors (see below), whose sum is σ = 38740466184. Its totient is φ = 11062307424.

The previous prime is 22131011989. The next prime is 22131012089. The reversal of 22131012044 is 44021013122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784049 + ... + 811784.

It is an arithmetic number, because the mean of its divisors is an integer number (3228372182).

Almost surely, 2^22131012044 is an apocalyptic number.

It is an amenable number.

22131012044 is a deficient number, since it is larger than the sum of its proper divisors (16609454140).

22131012044 is a wasteful number, since it uses less digits than its factorization.

22131012044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599304 (or 1599302 counting only the distinct ones).

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

Adding to 22131012044 its reverse (44021013122), we get a palindrome (66152025166).

The spelling of 22131012044 in words is "twenty-two billion, one hundred thirty-one million, twelve thousand, forty-four".