22203204212537 has 2 divisors, whose sum is σ = 22203204212538. Its totient is φ = 22203204212536.

The previous prime is 22203204212509. The next prime is 22203204212633. The reversal of 22203204212537 is 73521240230222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21498235751161 + 704968461376 = 4636619^2 + 839624^2 .

It is a cyclic number.

It is not a de Polignac number, because 22203204212537 - 2¹² = 22203204208441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22203204212497 and 22203204212506.

It is not a weakly prime, because it can be changed into another prime (22203204212507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101602106268 + 11101602106269.

It is an arithmetic number, because the mean of its divisors is an integer number (11101602106269).

Almost surely, 2^{22203204212537} is an apocalyptic number.

It is an amenable number.

22203204212537 is a deficient number, since it is larger than the sum of its proper divisors (1).

22203204212537 is an equidigital number, since it uses as much as digits as its factorization.

22203204212537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 35.

Adding to 22203204212537 its reverse (73521240230222), we get a palindrome (95724444442759).

The spelling of 22203204212537 in words is "twenty-two trillion, two hundred three billion, two hundred four million, two hundred twelve thousand, five hundred thirty-seven".