212213213122 has 16 divisors (see below), whose sum is σ = 321497377344. Its totient is φ = 105047590000.

The previous prime is 212213213083. The next prime is 212213213123. The reversal of 212213213122 is 221312312212.

It is a junction number, because it is equal to n+sod(n) for n = 212213213093 and 212213213102.

It is not an unprimeable number, because it can be changed into a prime (212213213123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3021747 + ... + 3091177.

It is an arithmetic number, because the mean of its divisors is an integer number (20093586084).

Almost surely, 2^212213213122 is an apocalyptic number.

212213213122 is a deficient number, since it is larger than the sum of its proper divisors (109284164222).

212213213122 is a wasteful number, since it uses less digits than its factorization.

212213213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84665.

The product of its digits is 576, while the sum is 22.

Adding to 212213213122 its reverse (221312312212), we get a palindrome (433525525334).

The spelling of 212213213122 in words is "two hundred twelve billion, two hundred thirteen million, two hundred thirteen thousand, one hundred twenty-two".