201222122121201 has 16 divisors (see below), whose sum is σ = 282735409305600. Its totient is φ = 126944377965648.

The previous prime is 201222122121179. The next prime is 201222122121203. The reversal of 201222122121201 is 102121221222102.

201222122121201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201222122121201 - 2⁵ = 201222122121169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201222122121203) 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, 1989922761 + ... + 1990023878.

It is an arithmetic number, because the mean of its divisors is an integer number (17670963081600).

Almost surely, 2^{201222122121201} is an apocalyptic number.

It is an amenable number.

201222122121201 is a deficient number, since it is larger than the sum of its proper divisors (81513287184399).

201222122121201 is a wasteful number, since it uses less digits than its factorization.

201222122121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979947548.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 201222122121201 its reverse (102121221222102), we get a palindrome (303343343343303).

The spelling of 201222122121201 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred one".