2221350433 has 2 divisors, whose sum is σ = 2221350434. Its totient is φ = 2221350432.

The previous prime is 2221350431. The next prime is 2221350473. The reversal of 2221350433 is 3340531222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1764588049 + 456762384 = 42007^2 + 21372^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221350433 - 2¹ = 2221350431 is a prime.

Together with 2221350431, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2221350398 and 2221350407.

It is not a weakly prime, because it can be changed into another prime (2221350431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110675216 + 1110675217.

It is an arithmetic number, because the mean of its divisors is an integer number (1110675217).

Almost surely, 2^2221350433 is an apocalyptic number.

It is an amenable number.

2221350433 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221350433 is an equidigital number, since it uses as much as digits as its factorization.

2221350433 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 25.

The square root of 2221350433 is about 47131.2044509792. The cubic root of 2221350433 is about 1304.7852110987.

Adding to 2221350433 its reverse (3340531222), we get a palindrome (5561881655).

The spelling of 2221350433 in words is "two billion, two hundred twenty-one million, three hundred fifty thousand, four hundred thirty-three".