201122020312009 has 32 divisors (see below), whose sum is σ = 222746263234560. Its totient is φ = 180761056358400.

The previous prime is 201122020311983. The next prime is 201122020312039. The reversal of 201122020312009 is 900213020221102.

It is not a de Polignac number, because 201122020312009 - 2⁵ = 201122020311977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201122020312039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8660077 + ... + 21845845.

It is an arithmetic number, because the mean of its divisors is an integer number (6960820726080).

Almost surely, 2^{201122020312009} is an apocalyptic number.

It is an amenable number.

201122020312009 is a deficient number, since it is larger than the sum of its proper divisors (21624242922551).

201122020312009 is a wasteful number, since it uses less digits than its factorization.

201122020312009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13186201.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 201122020312009 in words is "two hundred one trillion, one hundred twenty-two billion, twenty million, three hundred twelve thousand, nine".