322212121 has 8 divisors (see below), whose sum is σ = 401719104. Its totient is φ = 251074320.

The previous prime is 322212097. The next prime is 322212131. The reversal of 322212121 is 121212223.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 322212121 - 2¹³ = 322203929 is a prime.

It is a Duffinian number.

322212121 is a modest number, since divided by 212121 gives 322 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 322212095 and 322212104.

It is not an unprimeable number, because it can be changed into a prime (322212131) 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, 2092210 + ... + 2092363.

It is an arithmetic number, because the mean of its divisors is an integer number (50214888).

Almost surely, 2^322212121 is an apocalyptic number.

It is an amenable number.

322212121 is a deficient number, since it is larger than the sum of its proper divisors (79506983).

322212121 is a wasteful number, since it uses less digits than its factorization.

322212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4184591.

The product of its digits is 96, while the sum is 16.

The square root of 322212121 is about 17950.2679924284. The cubic root of 322212121 is about 685.5628747688.

Adding to 322212121 its reverse (121212223), we get a palindrome (443424344).

The spelling of 322212121 in words is "three hundred twenty-two million, two hundred twelve thousand, one hundred twenty-one".