212200212120101 has 4 divisors (see below), whose sum is σ = 212237329532172. Its totient is φ = 212163094708032.

The previous prime is 212200212120023. The next prime is 212200212120133. The reversal of 212200212120101 is 101021212002212.

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 170677267051201 + 41522945068900 = 13064351^2 + 6443830^2 .

It is a cyclic number.

It is not a de Polignac number, because 212200212120101 - 2¹⁸ = 212200211857957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212200212120101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212200212120601) 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 3 ways as a sum of consecutive naturals, for example, 18558697460 + ... + 18558708893.

It is an arithmetic number, because the mean of its divisors is an integer number (53059332383043).

Almost surely, 2^{212200212120101} is an apocalyptic number.

It is an amenable number.

212200212120101 is a deficient number, since it is larger than the sum of its proper divisors (37117412071).

212200212120101 is an equidigital number, since it uses as much as digits as its factorization.

212200212120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37117412070.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212200212120101 its reverse (101021212002212), we get a palindrome (313221424122313).

The spelling of 212200212120101 in words is "two hundred twelve trillion, two hundred billion, two hundred twelve million, one hundred twenty thousand, one hundred one".