22131112303537 has 2 divisors, whose sum is σ = 22131112303538. Its totient is φ = 22131112303536.

The previous prime is 22131112303523. The next prime is 22131112303583. The reversal of 22131112303537 is 73530321113122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21794481423936 + 336630879601 = 4668456^2 + 580199^2 .

It is a cyclic number.

It is not a de Polignac number, because 22131112303537 - 2³⁵ = 22096752565169 is a prime.

It is a super-2 number, since 2×22131112303537² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22131115303537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065556151768 + 11065556151769.

It is an arithmetic number, because the mean of its divisors is an integer number (11065556151769).

Almost surely, 2^{22131112303537} is an apocalyptic number.

It is an amenable number.

22131112303537 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131112303537 is an equidigital number, since it uses as much as digits as its factorization.

22131112303537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

Adding to 22131112303537 its reverse (73530321113122), we get a palindrome (95661433416659).

The spelling of 22131112303537 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred twelve million, three hundred three thousand, five hundred thirty-seven".