212202220220201 has 4 divisors (see below), whose sum is σ = 212619120456900. Its totient is φ = 211785319983504.

The previous prime is 212202220220189. The next prime is 212202220220269. The reversal of 212202220220201 is 102022022202212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84210354624400 + 127991865595801 = 9176620^2 + 11313349^2 .

It is a cyclic number.

It is not a de Polignac number, because 212202220220201 - 2³⁴ = 212185040351017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212202220225201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208450117586 + ... + 208450118603.

It is an arithmetic number, because the mean of its divisors is an integer number (53154780114225).

Almost surely, 2^{212202220220201} is an apocalyptic number.

It is an amenable number.

212202220220201 is a deficient number, since it is larger than the sum of its proper divisors (416900236699).

212202220220201 is an equidigital number, since it uses as much as digits as its factorization.

212202220220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416900236698.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 212202220220201 its reverse (102022022202212), we get a palindrome (314224242422413).

The spelling of 212202220220201 in words is "two hundred twelve trillion, two hundred two billion, two hundred twenty million, two hundred twenty thousand, two hundred one".