22222211873 has 2 divisors, whose sum is σ = 22222211874. Its totient is φ = 22222211872.

The previous prime is 22222211821. The next prime is 22222211909. The reversal of 22222211873 is 37811222222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13112082064 + 9110129809 = 114508^2 + 95447^2 .

It is a cyclic number.

It is not a de Polignac number, because 22222211873 - 2¹⁰ = 22222210849 is a prime.

It is not a weakly prime, because it can be changed into another prime (22222211773) 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, 11111105936 + 11111105937.

It is an arithmetic number, because the mean of its divisors is an integer number (11111105937).

Almost surely, 2^22222211873 is an apocalyptic number.

It is an amenable number.

22222211873 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222211873 is an equidigital number, since it uses as much as digits as its factorization.

22222211873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 32.

The spelling of 22222211873 in words is "twenty-two billion, two hundred twenty-two million, two hundred eleven thousand, eight hundred seventy-three".