212102021100201 has 4 divisors (see below), whose sum is σ = 282802694800272. Its totient is φ = 141401347400132.

The previous prime is 212102021100199. The next prime is 212102021100217. The reversal of 212102021100201 is 102001120201212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212102021100201 - 2¹ = 212102021100199 is a prime.

It is a super-2 number, since 2×212102021100201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212102021100251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35350336850031 + ... + 35350336850036.

It is an arithmetic number, because the mean of its divisors is an integer number (70700673700068).

Almost surely, 2^{212102021100201} is an apocalyptic number.

It is an amenable number.

212102021100201 is a deficient number, since it is larger than the sum of its proper divisors (70700673700071).

212102021100201 is an equidigital number, since it uses as much as digits as its factorization.

212102021100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70700673700070.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212102021100201 its reverse (102001120201212), we get a palindrome (314103141301413).

The spelling of 212102021100201 in words is "two hundred twelve trillion, one hundred two billion, twenty-one million, one hundred thousand, two hundred one".