22131050533 has 2 divisors, whose sum is σ = 22131050534. Its totient is φ = 22131050532.

The previous prime is 22131050519. The next prime is 22131050563. The reversal of 22131050533 is 33505013122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16379648289 + 5751402244 = 127983^2 + 75838^2 .

It is a cyclic number.

It is not a de Polignac number, because 22131050533 - 2²¹ = 22128953381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22131050498 and 22131050507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22131050563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065525266 + 11065525267.

It is an arithmetic number, because the mean of its divisors is an integer number (11065525267).

Almost surely, 2^22131050533 is an apocalyptic number.

It is an amenable number.

22131050533 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131050533 is an equidigital number, since it uses as much as digits as its factorization.

22131050533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 22131050533 its reverse (33505013122), we get a palindrome (55636063655).

The spelling of 22131050533 in words is "twenty-two billion, one hundred thirty-one million, fifty thousand, five hundred thirty-three".