22011100361 has 2 divisors, whose sum is σ = 22011100362. Its totient is φ = 22011100360.

The previous prime is 22011100291. The next prime is 22011100367. The reversal of 22011100361 is 16300111022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21186549136 + 824551225 = 145556^2 + 28715^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011100361 - 2¹⁸ = 22010838217 is a prime.

It is not a weakly prime, because it can be changed into another prime (22011100367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005550180 + 11005550181.

It is an arithmetic number, because the mean of its divisors is an integer number (11005550181).

Almost surely, 2^22011100361 is an apocalyptic number.

It is an amenable number.

22011100361 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011100361 is an equidigital number, since it uses as much as digits as its factorization.

22011100361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 22011100361 its reverse (16300111022), we get a palindrome (38311211383).

The spelling of 22011100361 in words is "twenty-two billion, eleven million, one hundred thousand, three hundred sixty-one".