211210220222210 has 32 divisors (see below), whose sum is σ = 425949259856832. Its totient is φ = 74727940322880.

The previous prime is 211210220222207. The next prime is 211210220222237. The reversal of 211210220222210 is 12222022012112.

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 15 ways as a sum of consecutive naturals, for example, 25947197432 + ... + 25947205571.

It is an arithmetic number, because the mean of its divisors is an integer number (13310914370526).

Almost surely, 2^{211210220222210} is an apocalyptic number.

211210220222210 is an abundant number, since it is smaller than the sum of its proper divisors (214739039634622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211210220222210 is a wasteful number, since it uses less digits than its factorization.

211210220222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51894403058.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 211210220222210 its reverse (12222022012112), we get a palindrome (223432242234322).

The spelling of 211210220222210 in words is "two hundred eleven trillion, two hundred ten billion, two hundred twenty million, two hundred twenty-two thousand, two hundred ten".