210221211210203 has 8 divisors (see below), whose sum is σ = 215364299102736. Its totient is φ = 205078872902400.

The previous prime is 210221211210181. The next prime is 210221211210211. The reversal of 210221211210203 is 302012112122012.

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

It is a cyclic number.

It is not a de Polignac number, because 210221211210203 - 2⁶ = 210221211210139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210221211210403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186828401 + ... + 187950242.

It is an arithmetic number, because the mean of its divisors is an integer number (26920537387842).

Almost surely, 2^{210221211210203} is an apocalyptic number.

210221211210203 is a deficient number, since it is larger than the sum of its proper divisors (5143087892533).

210221211210203 is a wasteful number, since it uses less digits than its factorization.

210221211210203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374792365.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 210221211210203 its reverse (302012112122012), we get a palindrome (512233323332215).

The spelling of 210221211210203 in words is "two hundred ten trillion, two hundred twenty-one billion, two hundred eleven million, two hundred ten thousand, two hundred three".