212021201204 has 6 divisors (see below), whose sum is σ = 371037102114. Its totient is φ = 106010600600.

The previous prime is 212021201201. The next prime is 212021201213. The reversal of 212021201204 is 402102120212.

212021201204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 145121378704 + 66899822500 = 380948^2 + 258650^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021201201) 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 as a sum of consecutive naturals, namely, 26502650147 + ... + 26502650154.

It is an arithmetic number, because the mean of its divisors is an integer number (61839517019).

Almost surely, 2^212021201204 is an apocalyptic number.

It is an amenable number.

212021201204 is a deficient number, since it is larger than the sum of its proper divisors (159015900910).

212021201204 is a wasteful number, since it uses less digits than its factorization.

212021201204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53005300305 (or 53005300303 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212021201204 its reverse (402102120212), we get a palindrome (614123321416).

The spelling of 212021201204 in words is "two hundred twelve billion, twenty-one million, two hundred one thousand, two hundred four".