211122120020210 has 192 divisors, whose sum is σ = 457880640307200. Its totient is φ = 69841319812992.

The previous prime is 211122120020083. The next prime is 211122120020221. The reversal of 211122120020210 is 12020021221112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1198876787 + ... + 1199052873.

It is an arithmetic number, because the mean of its divisors is an integer number (2384795001600).

Almost surely, 2^{211122120020210} is an apocalyptic number.

211122120020210 is an abundant number, since it is smaller than the sum of its proper divisors (246758520286990).

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

211122120020210 is a wasteful number, since it uses less digits than its factorization.

211122120020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176893 (or 176886 counting only the distinct ones).

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

Adding to 211122120020210 its reverse (12020021221112), we get a palindrome (223142141241322).

The spelling of 211122120020210 in words is "two hundred eleven trillion, one hundred twenty-two billion, one hundred twenty million, twenty thousand, two hundred ten".