22204042541 has 2 divisors, whose sum is σ = 22204042542. Its totient is φ = 22204042540.

The previous prime is 22204042537. The next prime is 22204042543. The reversal of 22204042541 is 14524040222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22202490025 + 1552516 = 149005^2 + 1246^2 .

It is a cyclic number.

It is not a de Polignac number, because 22204042541 - 2² = 22204042537 is a prime.

Together with 22204042543, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22204042541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22204042543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11102021270 + 11102021271.

It is an arithmetic number, because the mean of its divisors is an integer number (11102021271).

Almost surely, 2^22204042541 is an apocalyptic number.

It is an amenable number.

22204042541 is a deficient number, since it is larger than the sum of its proper divisors (1).

22204042541 is an equidigital number, since it uses as much as digits as its factorization.

22204042541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 22204042541 its reverse (14524040222), we get a palindrome (36728082763).

The spelling of 22204042541 in words is "twenty-two billion, two hundred four million, forty-two thousand, five hundred forty-one".