2221200212009 has 8 divisors (see below), whose sum is σ = 2233982659368. Its totient is φ = 2208452359680.

The previous prime is 2221200211991. The next prime is 2221200212041. The reversal of 2221200212009 is 9002120021222.

It can be written as a sum of positive squares in 4 ways, for example, as 1240561578025 + 980638633984 = 1113805^2 + 990272^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2221200212009 - 2³² = 2216905244713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221200272009) 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, 8519972 + ... + 8776805.

It is an arithmetic number, because the mean of its divisors is an integer number (279247832421).

Almost surely, 2^{2221200212009} is an apocalyptic number.

It is an amenable number.

2221200212009 is a deficient number, since it is larger than the sum of its proper divisors (12782447359).

2221200212009 is a wasteful number, since it uses less digits than its factorization.

2221200212009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17297515.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 2221200212009 in words is "two trillion, two hundred twenty-one billion, two hundred million, two hundred twelve thousand, nine".