22540230091 has 2 divisors, whose sum is σ = 22540230092. Its totient is φ = 22540230090.

The previous prime is 22540230073. The next prime is 22540230121. The reversal of 22540230091 is 19003204522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22540230091 - 2¹¹ = 22540228043 is a prime.

It is not a weakly prime, because it can be changed into another prime (22540230191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270115045 + 11270115046.

It is an arithmetic number, because the mean of its divisors is an integer number (11270115046).

Almost surely, 2^22540230091 is an apocalyptic number.

22540230091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22540230091 is an equidigital number, since it uses as much as digits as its factorization.

22540230091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 22540230091 in words is "twenty-two billion, five hundred forty million, two hundred thirty thousand, ninety-one".