201210122200009 has 16 divisors (see below), whose sum is σ = 230049271588752. Its totient is φ = 174338332489728.

The previous prime is 201210122199991. The next prime is 201210122200019. The reversal of 201210122200009 is 900002221012102.

It can be written as a sum of positive squares in 8 ways, for example, as 22331267006409 + 178878855193600 = 4725597^2 + 13374560^2 .

It is a cyclic number.

It is not a de Polignac number, because 201210122200009 - 2¹¹ = 201210122197961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201210122200019) 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, 1220364004 + ... + 1220528869.

It is an arithmetic number, because the mean of its divisors is an integer number (14378079474297).

Almost surely, 2^{201210122200009} is an apocalyptic number.

It is an amenable number.

201210122200009 is a deficient number, since it is larger than the sum of its proper divisors (28839149388743).

201210122200009 is a wasteful number, since it uses less digits than its factorization.

201210122200009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440893276.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 201210122200009 in words is "two hundred one trillion, two hundred ten billion, one hundred twenty-two million, two hundred thousand, nine".