22122805541 has 2 divisors, whose sum is σ = 22122805542. Its totient is φ = 22122805540.

The previous prime is 22122805499. The next prime is 22122805609. The reversal of 22122805541 is 14550822122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13057861441 + 9064944100 = 114271^2 + 95210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22122805541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22122805498 and 22122805507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22122808541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061402770 + 11061402771.

It is an arithmetic number, because the mean of its divisors is an integer number (11061402771).

Almost surely, 2^22122805541 is an apocalyptic number.

It is an amenable number.

22122805541 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122805541 is an equidigital number, since it uses as much as digits as its factorization.

22122805541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12800, while the sum is 32.

The spelling of 22122805541 in words is "twenty-two billion, one hundred twenty-two million, eight hundred five thousand, five hundred forty-one".