22220742097 has 2 divisors, whose sum is σ = 22220742098. Its totient is φ = 22220742096.

The previous prime is 22220742067. The next prime is 22220742101. The reversal of 22220742097 is 79024702222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19283210496 + 2937531601 = 138864^2 + 54199^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220742097 - 2¹¹ = 22220740049 is a prime.

It is a super-2 number, since 2×22220742097² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22220742017) 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, 11110371048 + 11110371049.

It is an arithmetic number, because the mean of its divisors is an integer number (11110371049).

Almost surely, 2^22220742097 is an apocalyptic number.

It is an amenable number.

22220742097 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220742097 is an equidigital number, since it uses as much as digits as its factorization.

22220742097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 22220742097 in words is "twenty-two billion, two hundred twenty million, seven hundred forty-two thousand, ninety-seven".