22221022209 has 8 divisors (see below), whose sum is σ = 29638247232. Its totient is φ = 14808906000.

The previous prime is 22221022207. The next prime is 22221022249. The reversal of 22221022209 is 90222012222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22221022209 - 2¹ = 22221022207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22221022207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1267042 + ... + 1284459.

It is an arithmetic number, because the mean of its divisors is an integer number (3704780904).

Almost surely, 2^22221022209 is an apocalyptic number.

It is an amenable number.

22221022209 is a deficient number, since it is larger than the sum of its proper divisors (7417225023).

22221022209 is a wasteful number, since it uses less digits than its factorization.

22221022209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554407.

The product of its (nonzero) digits is 1152, while the sum is 24.

The spelling of 22221022209 in words is "twenty-two billion, two hundred twenty-one million, twenty-two thousand, two hundred nine".