22230442309 has 4 divisors (see below), whose sum is σ = 23538115404. Its totient is φ = 20922769216.

The previous prime is 22230442261. The next prime is 22230442313. The reversal of 22230442309 is 90324403222.

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 12522281409 + 9708160900 = 111903^2 + 98530^2 .

It is a cyclic number.

It is not a de Polignac number, because 22230442309 - 2¹¹ = 22230440261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230442109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653836522 + ... + 653836555.

It is an arithmetic number, because the mean of its divisors is an integer number (5884528851).

Almost surely, 2^22230442309 is an apocalyptic number.

It is an amenable number.

22230442309 is a deficient number, since it is larger than the sum of its proper divisors (1307673095).

22230442309 is a wasteful number, since it uses less digits than its factorization.

22230442309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307673094.

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 22230442309 in words is "twenty-two billion, two hundred thirty million, four hundred forty-two thousand, three hundred nine".