20022220093 has 2 divisors, whose sum is σ = 20022220094. Its totient is φ = 20022220092.

The previous prime is 20022220087. The next prime is 20022220129. The reversal of 20022220093 is 39002222002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17752364644 + 2269855449 = 133238^2 + 47643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20022220093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20022220003) 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, 10011110046 + 10011110047.

It is an arithmetic number, because the mean of its divisors is an integer number (10011110047).

Almost surely, 2^20022220093 is an apocalyptic number.

It is an amenable number.

20022220093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022220093 is an equidigital number, since it uses as much as digits as its factorization.

20022220093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20022220093 its reverse (39002222002), we get a palindrome (59024442095).

The spelling of 20022220093 in words is "twenty billion, twenty-two million, two hundred twenty thousand, ninety-three".