212012221201201 has 32 divisors (see below), whose sum is σ = 214421688301568. Its totient is φ = 209620057489920.

The previous prime is 212012221201199. The next prime is 212012221201237. The reversal of 212012221201201 is 102102122210212.

It is a cyclic number.

It is not a de Polignac number, because 212012221201201 - 2¹ = 212012221201199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212012221231201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40146223681 + ... + 40146228961.

It is an arithmetic number, because the mean of its divisors is an integer number (6700677759424).

Almost surely, 2^{212012221201201} is an apocalyptic number.

It is an amenable number.

212012221201201 is a deficient number, since it is larger than the sum of its proper divisors (2409467100367).

212012221201201 is a wasteful number, since it uses less digits than its factorization.

212012221201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7421.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212012221201201 its reverse (102102122210212), we get a palindrome (314114343411413).

The spelling of 212012221201201 in words is "two hundred twelve trillion, twelve billion, two hundred twenty-one million, two hundred one thousand, two hundred one".