22143123402004 has 12 divisors (see below), whose sum is σ = 42273235585728. Its totient is φ = 10065056091800.

The previous prime is 22143123401941. The next prime is 22143123402007. The reversal of 22143123402004 is 40020432134122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143123402007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251626402252 + ... + 251626402339.

It is an arithmetic number, because the mean of its divisors is an integer number (3522769632144).

Almost surely, 2^{22143123402004} is an apocalyptic number.

It is an amenable number.

22143123402004 is a deficient number, since it is larger than the sum of its proper divisors (20130112183724).

22143123402004 is a wasteful number, since it uses less digits than its factorization.

22143123402004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503252804606 (or 503252804604 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 22143123402004 its reverse (40020432134122), we get a palindrome (62163555536126).

The spelling of 22143123402004 in words is "twenty-two trillion, one hundred forty-three billion, one hundred twenty-three million, four hundred two thousand, four".