22201125109 has 4 divisors (see below), whose sum is σ = 22620014316. Its totient is φ = 21782235904.

The previous prime is 22201125101. The next prime is 22201125127. The reversal of 22201125109 is 90152110222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10483712100 + 11717413009 = 102390^2 + 108247^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201125109 - 2³ = 22201125101 is a prime.

It is a super-2 number, since 2×22201125109² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201125101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209444524 + ... + 209444629.

It is an arithmetic number, because the mean of its divisors is an integer number (5655003579).

Almost surely, 2^22201125109 is an apocalyptic number.

It is an amenable number.

22201125109 is a deficient number, since it is larger than the sum of its proper divisors (418889207).

22201125109 is an equidigital number, since it uses as much as digits as its factorization.

22201125109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418889206.

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 22201125109 in words is "twenty-two billion, two hundred one million, one hundred twenty-five thousand, one hundred nine".