212012220022 has 16 divisors (see below), whose sum is σ = 323480851200. Its totient is φ = 104186073960.

The previous prime is 212012220011. The next prime is 212012220023. The reversal of 212012220022 is 220022210212.

It is a junction number, because it is equal to n+sod(n) for n = 212012219978 and 212012220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012220023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 334447 + ... + 732037.

It is an arithmetic number, because the mean of its divisors is an integer number (20217553200).

Almost surely, 2^212012220022 is an apocalyptic number.

212012220022 is a deficient number, since it is larger than the sum of its proper divisors (111468631178).

212012220022 is a wasteful number, since it uses less digits than its factorization.

212012220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402171.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212012220022 its reverse (220022210212), we get a palindrome (432034430234).

The spelling of 212012220022 in words is "two hundred twelve billion, twelve million, two hundred twenty thousand, twenty-two".