20200122010209 has 16 divisors (see below), whose sum is σ = 27803998760960. Its totient is φ = 13031549142480.

The previous prime is 20200122010181. The next prime is 20200122010241. The reversal of 20200122010209 is 90201022100202.

It is a happy number.

It is not a de Polignac number, because 20200122010209 - 2¹³ = 20200122002017 is a prime.

It is a super-2 number, since 2×20200122010209² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200122010609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5014639 + ... + 8096100.

It is an arithmetic number, because the mean of its divisors is an integer number (1737749922560).

Almost surely, 2^{20200122010209} is an apocalyptic number.

It is an amenable number.

20200122010209 is a deficient number, since it is larger than the sum of its proper divisors (7603876750751).

20200122010209 is a wasteful number, since it uses less digits than its factorization.

20200122010209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13127340.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 20200122010209 in words is "twenty trillion, two hundred billion, one hundred twenty-two million, ten thousand, two hundred nine".