20224100437 has 2 divisors, whose sum is σ = 20224100438. Its totient is φ = 20224100436.

The previous prime is 20224100419. The next prime is 20224100443. The reversal of 20224100437 is 73400142202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16243247601 + 3980852836 = 127449^2 + 63094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20224100437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20224100497) by changing a digit.

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 as a sum of consecutive naturals, namely, 10112050218 + 10112050219.

It is an arithmetic number, because the mean of its divisors is an integer number (10112050219).

Almost surely, 2^20224100437 is an apocalyptic number.

It is an amenable number.

20224100437 is a deficient number, since it is larger than the sum of its proper divisors (1).

20224100437 is an equidigital number, since it uses as much as digits as its factorization.

20224100437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 20224100437 its reverse (73400142202), we get a palindrome (93624242639).

The spelling of 20224100437 in words is "twenty billion, two hundred twenty-four million, one hundred thousand, four hundred thirty-seven".