212022 has 12 divisors (see below), whose sum is σ = 459420. Its totient is φ = 70668.

The previous prime is 211997. The next prime is 212029. The reversal of 212022 is 220212.

212022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 211995 and 212013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212029) by changing a digit.

212022 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5872 + ... + 5907.

It is an arithmetic number, because the mean of its divisors is an integer number (38285).

2²¹²⁰²² is an apocalyptic number.

212022 is an abundant number, since it is smaller than the sum of its proper divisors (247398).

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

212022 is a wasteful number, since it uses less digits than its factorization.

212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11787 (or 11784 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 212022 is about 460.4584671824. The cubic root of 212022 is about 59.6293820863.

Adding to 212022 its reverse (220212), we get a palindrome (432234).

The spelling of 212022 in words is "two hundred twelve thousand, twenty-two", and thus it is an iban number.