212322 has 16 divisors (see below), whose sum is σ = 463392. Its totient is φ = 64320.

The previous prime is 212297. The next prime is 212353. The reversal of 212322 is 223212.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 212298 and 212307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543 + ... + 1674.

It is an arithmetic number, because the mean of its divisors is an integer number (28962).

2²¹²³²² is an apocalyptic number.

212322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212322 is an abundant number, since it is smaller than the sum of its proper divisors (251070).

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

212322 is a wasteful number, since it uses less digits than its factorization.

212322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233.

The product of its digits is 48, while the sum is 12.

The square root of 212322 is about 460.7841143095. The cubic root of 212322 is about 59.6574929805.

Adding to 212322 its reverse (223212), we get a palindrome (435534).

It can be divided in two parts, 2123 and 22, that added together give a triangular number (2145 = T₆₅).

The spelling of 212322 in words is "two hundred twelve thousand, three hundred twenty-two", and thus it is an iban number.