212120020112210 has 96 divisors (see below), whose sum is σ = 444788550017280. Its totient is φ = 72622895925888.

The previous prime is 212120020112197. The next prime is 212120020112243. The reversal of 212120020112210 is 12211020021212.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1791147059 + ... + 1791265481.

It is an arithmetic number, because the mean of its divisors is an integer number (4633214062680).

Almost surely, 2^{212120020112210} is an apocalyptic number.

212120020112210 is an abundant number, since it is smaller than the sum of its proper divisors (232668529905070).

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

212120020112210 is a wasteful number, since it uses less digits than its factorization.

212120020112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123640 (or 123633 counting only the distinct ones).

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

Adding to 212120020112210 its reverse (12211020021212), we get a palindrome (224331040133422).

The spelling of 212120020112210 in words is "two hundred twelve trillion, one hundred twenty billion, twenty million, one hundred twelve thousand, two hundred ten".