22230550421 has 2 divisors, whose sum is σ = 22230550422. Its totient is φ = 22230550420.

The previous prime is 22230550417. The next prime is 22230550439. The reversal of 22230550421 is 12405503222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21899856196 + 330694225 = 147986^2 + 18185^2 .

It is a cyclic number.

It is not a de Polignac number, because 22230550421 - 2² = 22230550417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22230550451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11115275210 + 11115275211.

It is an arithmetic number, because the mean of its divisors is an integer number (11115275211).

Almost surely, 2^22230550421 is an apocalyptic number.

It is an amenable number.

22230550421 is a deficient number, since it is larger than the sum of its proper divisors (1).

22230550421 is an equidigital number, since it uses as much as digits as its factorization.

22230550421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 22230550421 in words is "twenty-two billion, two hundred thirty million, five hundred fifty thousand, four hundred twenty-one".