212012221212201 has 16 divisors (see below), whose sum is σ = 291820422656000. Its totient is φ = 136773333282960.

The previous prime is 212012221212199. The next prime is 212012221212257. The reversal of 212012221212201 is 102212122210212.

It is not a de Polignac number, because 212012221212201 - 2¹ = 212012221212199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212012221712201) 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 15 ways as a sum of consecutive naturals, for example, 71411701 + ... + 74321298.

It is an arithmetic number, because the mean of its divisors is an integer number (18238776416000).

Almost surely, 2^{212012221212201} is an apocalyptic number.

It is an amenable number.

212012221212201 is a deficient number, since it is larger than the sum of its proper divisors (79808201443799).

212012221212201 is a wasteful number, since it uses less digits than its factorization.

212012221212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145748676.

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

Adding to 212012221212201 its reverse (102212122210212), we get a palindrome (314224343422413).

The spelling of 212012221212201 in words is "two hundred twelve trillion, twelve billion, two hundred twenty-one million, two hundred twelve thousand, two hundred one".