210021213202 has 8 divisors (see below), whose sum is σ = 315273969612. Its totient is φ = 104929890000.

The previous prime is 210021213131. The next prime is 210021213211. The reversal of 210021213202 is 202312120012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 185641201321 + 24380011881 = 430861^2 + 156141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40355049 + ... + 40360252.

Almost surely, 2^210021213202 is an apocalyptic number.

210021213202 is a deficient number, since it is larger than the sum of its proper divisors (105252756410).

210021213202 is a wasteful number, since it uses less digits than its factorization.

210021213202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80716604.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 210021213202 its reverse (202312120012), we get a palindrome (412333333214).

The spelling of 210021213202 in words is "two hundred ten billion, twenty-one million, two hundred thirteen thousand, two hundred two".