22243203403421 has 192 divisors, whose sum is σ = 32976011658240. Its totient is φ = 14538778214400.

The previous prime is 22243203403391. The next prime is 22243203403451. The reversal of 22243203403421 is 12430430234222.

It is an interprime number because it is at equal distance from previous prime (22243203403391) and next prime (22243203403451).

It is not a de Polignac number, because 22243203403421 - 2³⁸ = 21968325496477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22243203403451) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 744427760 + ... + 744457638.

It is an arithmetic number, because the mean of its divisors is an integer number (171750060720).

Almost surely, 2^{22243203403421} is an apocalyptic number.

It is an amenable number.

22243203403421 is a deficient number, since it is larger than the sum of its proper divisors (10732808254819).

22243203403421 is a wasteful number, since it uses less digits than its factorization.

22243203403421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30076 (or 30065 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 22243203403421 its reverse (12430430234222), we get a palindrome (34673633637643).

The spelling of 22243203403421 in words is "twenty-two trillion, two hundred forty-three billion, two hundred three million, four hundred three thousand, four hundred twenty-one".