212022012222 has 24 divisors (see below), whose sum is σ = 459939237264. Its totient is φ = 70588125504.

The previous prime is 212022012203. The next prime is 212022012227. The reversal of 212022012222 is 222210220212.

212022012222 is a `hidden beast` number, since 212 + 0 + 220 + 12 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212022012195 and 212022012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022012227) 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 11 ways as a sum of consecutive naturals, for example, 7141323 + ... + 7170950.

It is an arithmetic number, because the mean of its divisors is an integer number (19164134886).

Almost surely, 2^212022012222 is an apocalyptic number.

212022012222 is an abundant number, since it is smaller than the sum of its proper divisors (247917225042).

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

212022012222 is a wasteful number, since it uses less digits than its factorization.

212022012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14313104 (or 14313101 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 212022012222 its reverse (222210220212), we get a palindrome (434232232434).

The spelling of 212022012222 in words is "two hundred twelve billion, twenty-two million, twelve thousand, two hundred twenty-two".