22002219949 has 2 divisors, whose sum is σ = 22002219950. Its totient is φ = 22002219948.

The previous prime is 22002219923. The next prime is 22002220021. The reversal of 22002219949 is 94991220022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19389170025 + 2613049924 = 139245^2 + 51118^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002219949 - 2⁷ = 22002219821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22002619949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001109974 + 11001109975.

It is an arithmetic number, because the mean of its divisors is an integer number (11001109975).

Almost surely, 2^22002219949 is an apocalyptic number.

It is an amenable number.

22002219949 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002219949 is an equidigital number, since it uses as much as digits as its factorization.

22002219949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 22002219949 in words is "twenty-two billion, two million, two hundred nineteen thousand, nine hundred forty-nine".