212021120201 has 4 divisors (see below), whose sum is σ = 231295767504.
Its totient is φ = 192746472900.
The previous prime is 212021120093. The next prime is 212021120249. The reversal of 212021120201 is 102021120212.
212021120201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 212021120201 - 226 = 211954011337 is a prime.
It is a super-2 number, since 2×2120211202012 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (212021120401) 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 3 ways as a sum of consecutive naturals, for example, 9637323635 + ... + 9637323656.
It is an arithmetic number, because the mean of its divisors is an integer number (57823941876).
Almost surely, 2212021120201 is an apocalyptic number.
It is an amenable number.
212021120201 is a deficient number, since it is larger than the sum of its proper divisors (19274647303).
212021120201 is a wasteful number, since it uses less digits than its factorization.
212021120201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19274647302.
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 212021120201 its reverse (102021120212), we get a palindrome (314042240413).
It can be divided in two parts, 2120211 and 20201, that added together give a palindrome (2140412).
The spelling of 212021120201 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, two hundred one".