211210220020210 has 8 divisors (see below), whose sum is σ = 380178396036396. Its totient is φ = 84484088008080.

The previous prime is 211210220020169. The next prime is 211210220020237. The reversal of 211210220020210 is 12020022012112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 169248573336249 + 41961646683961 = 13009557^2 + 6477781^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10560511001001 + ... + 10560511001020.

Almost surely, 2^{211210220020210} is an apocalyptic number.

211210220020210 is a deficient number, since it is larger than the sum of its proper divisors (168968176016186).

211210220020210 is a wasteful number, since it uses less digits than its factorization.

211210220020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21121022002028.

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

Adding to 211210220020210 its reverse (12020022012112), we get a palindrome (223230242032322).

The spelling of 211210220020210 in words is "two hundred eleven trillion, two hundred ten billion, two hundred twenty million, twenty thousand, two hundred ten".