212012122110222 has 64 divisors (see below), whose sum is σ = 497490807711744. Its totient is φ = 58969815125760.

The previous prime is 212012122110203. The next prime is 212012122110289. The reversal of 212012122110222 is 222011221210212.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132161353 + ... + 133755924.

It is an arithmetic number, because the mean of its divisors is an integer number (7773293870496).

Almost surely, 2^{212012122110222} is an apocalyptic number.

212012122110222 is an abundant number, since it is smaller than the sum of its proper divisors (285478685601522).

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

212012122110222 is a wasteful number, since it uses less digits than its factorization.

212012122110222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265917793.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212012122110222 its reverse (222011221210212), we get a palindrome (434023343320434).

The spelling of 212012122110222 in words is "two hundred twelve trillion, twelve billion, one hundred twenty-two million, one hundred ten thousand, two hundred twenty-two".