22404412237 has 2 divisors, whose sum is σ = 22404412238. Its totient is φ = 22404412236.

The previous prime is 22404412211. The next prime is 22404412253. The reversal of 22404412237 is 73221440422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20052259236 + 2352153001 = 141606^2 + 48499^2 .

It is a cyclic number.

It is not a de Polignac number, because 22404412237 - 2⁷ = 22404412109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22404412199 and 22404412208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22404412207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11202206118 + 11202206119.

It is an arithmetic number, because the mean of its divisors is an integer number (11202206119).

Almost surely, 2^22404412237 is an apocalyptic number.

It is an amenable number.

22404412237 is a deficient number, since it is larger than the sum of its proper divisors (1).

22404412237 is an equidigital number, since it uses as much as digits as its factorization.

22404412237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 31.

Adding to 22404412237 its reverse (73221440422), we get a palindrome (95625852659).

The spelling of 22404412237 in words is "twenty-two billion, four hundred four million, four hundred twelve thousand, two hundred thirty-seven".