212021122201 has 16 divisors (see below), whose sum is σ = 243145603584. Its totient is φ = 181105876224.

The previous prime is 212021122177. The next prime is 212021122259. The reversal of 212021122201 is 102221120212.

It is a happy number.

212021122201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212021122201 - 2¹⁷ = 212020991129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021132201) 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 15 ways as a sum of consecutive naturals, for example, 10820325 + ... + 10839901.

It is an arithmetic number, because the mean of its divisors is an integer number (15196600224).

Almost surely, 2^212021122201 is an apocalyptic number.

It is an amenable number.

212021122201 is a deficient number, since it is larger than the sum of its proper divisors (31124481383).

212021122201 is a wasteful number, since it uses less digits than its factorization.

212021122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24840.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212021122201 its reverse (102221120212), we get a palindrome (314242242413).

It can be divided in two parts, 2120211 and 22201, that added together give a palindrome (2142412).

The spelling of 212021122201 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-two thousand, two hundred one".