210201221021210 has 32 divisors (see below), whose sum is σ = 401710402183680. Its totient is φ = 78918951750912.

The previous prime is 210201221021191. The next prime is 210201221021237. The reversal of 210201221021210 is 12120122102012.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1684512230 + ... + 1684637009.

It is an arithmetic number, because the mean of its divisors is an integer number (12553450068240).

Almost surely, 2^{210201221021210} is an apocalyptic number.

210201221021210 is a deficient number, since it is larger than the sum of its proper divisors (191509181162470).

210201221021210 is a wasteful number, since it uses less digits than its factorization.

210201221021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369149630.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210201221021210 its reverse (12120122102012), we get a palindrome (222321343123222).

The spelling of 210201221021210 in words is "two hundred ten trillion, two hundred one billion, two hundred twenty-one million, twenty-one thousand, two hundred ten".