201220121001201 has 16 divisors (see below), whose sum is σ = 284668524403200. Its totient is φ = 125992180214528.

The previous prime is 201220121001181. The next prime is 201220121001209. The reversal of 201220121001201 is 102100121022102.

It is a cyclic number.

It is not a de Polignac number, because 201220121001201 - 2²³ = 201220112612593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201220121001209) 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, 4118443806 + ... + 4118492663.

It is an arithmetic number, because the mean of its divisors is an integer number (17791782775200).

Almost surely, 2^{201220121001201} is an apocalyptic number.

It is an amenable number.

201220121001201 is a deficient number, since it is larger than the sum of its proper divisors (83448403401999).

201220121001201 is a wasteful number, since it uses less digits than its factorization.

201220121001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8236936968.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201220121001201 its reverse (102100121022102), we get a palindrome (303320242023303).

The spelling of 201220121001201 in words is "two hundred one trillion, two hundred twenty billion, one hundred twenty-one million, one thousand, two hundred one".