22102100243 has 2 divisors, whose sum is σ = 22102100244. Its totient is φ = 22102100242.

The previous prime is 22102100239. The next prime is 22102100323. The reversal of 22102100243 is 34200120122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22102100243 - 2² = 22102100239 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22102100213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051050121 + 11051050122.

It is an arithmetic number, because the mean of its divisors is an integer number (11051050122).

Almost surely, 2^22102100243 is an apocalyptic number.

22102100243 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102100243 is an equidigital number, since it uses as much as digits as its factorization.

22102100243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22102100243 its reverse (34200120122), we get a palindrome (56302220365).

The spelling of 22102100243 in words is "twenty-two billion, one hundred two million, one hundred thousand, two hundred forty-three".