20122201202009 has 8 divisors (see below), whose sum is σ = 20252035746888. Its totient is φ = 19992387767040.

The previous prime is 20122201201997. The next prime is 20122201202041. The reversal of 20122201202009 is 90020210222102.

It can be written as a sum of positive squares in 4 ways, for example, as 723928705600 + 19398272496409 = 850840^2 + 4404347^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20122201202009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122201204009) 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, 3362672 + ... + 7179969.

It is an arithmetic number, because the mean of its divisors is an integer number (2531504468361).

Almost surely, 2^{20122201202009} is an apocalyptic number.

It is an amenable number.

20122201202009 is a deficient number, since it is larger than the sum of its proper divisors (129834544879).

20122201202009 is a wasteful number, since it uses less digits than its factorization.

20122201202009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10554955.

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

The spelling of 20122201202009 in words is "twenty trillion, one hundred twenty-two billion, two hundred one million, two hundred two thousand, nine".