22021233109 has 2 divisors, whose sum is σ = 22021233110. Its totient is φ = 22021233108.

The previous prime is 22021233083. The next prime is 22021233133. The reversal of 22021233109 is 90133212022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11936655025 + 10084578084 = 109255^2 + 100422^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021233109 - 2⁵ = 22021233077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22021203109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010616554 + 11010616555.

It is an arithmetic number, because the mean of its divisors is an integer number (11010616555).

Almost surely, 2^22021233109 is an apocalyptic number.

It is an amenable number.

22021233109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021233109 is an equidigital number, since it uses as much as digits as its factorization.

22021233109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 22021233109 in words is "twenty-two billion, twenty-one million, two hundred thirty-three thousand, one hundred nine".