22144243004 has 24 divisors (see below), whose sum is σ = 41963970048. Its totient is φ = 10163949120.

The previous prime is 22144242983. The next prime is 22144243021. The reversal of 22144243004 is 40034244122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166972 + ... + 1185795.

It is an arithmetic number, because the mean of its divisors is an integer number (1748498752).

Almost surely, 2^22144243004 is an apocalyptic number.

It is an amenable number.

22144243004 is a deficient number, since it is larger than the sum of its proper divisors (19819727044).

22144243004 is a wasteful number, since it uses less digits than its factorization.

22144243004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352965 (or 2352963 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 22144243004 its reverse (40034244122), we get a palindrome (62178487126).

The spelling of 22144243004 in words is "twenty-two billion, one hundred forty-four million, two hundred forty-three thousand, four".