201211022001 has 32 divisors (see below), whose sum is σ = 296412681600. Its totient is φ = 120393031680.

The previous prime is 201211021997. The next prime is 201211022039. The reversal of 201211022001 is 100220112102.

201211022001 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 201211022001 - 2² = 201211021997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201211027001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1232365 + ... + 1386053.

It is an arithmetic number, because the mean of its divisors is an integer number (9262896300).

Almost surely, 2^201211022001 is an apocalyptic number.

It is an amenable number.

201211022001 is a deficient number, since it is larger than the sum of its proper divisors (95201659599).

201211022001 is a wasteful number, since it uses less digits than its factorization.

201211022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154209.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201211022001 its reverse (100220112102), we get a palindrome (301431134103).

The spelling of 201211022001 in words is "two hundred one billion, two hundred eleven million, twenty-two thousand, one".