322312121 has 4 divisors (see below), whose sum is σ = 322396452. Its totient is φ = 322227792.

The previous prime is 322312099. The next prime is 322312147. The reversal of 322312121 is 121213223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121213223 = 857 ⋅141439.

It can be written as a sum of positive squares in 2 ways, for example, as 138980521 + 183331600 = 11789^2 + 13540^2 .

It is a cyclic number.

It is not a de Polignac number, because 322312121 - 2¹⁸ = 322049977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 322312121.

It is not an unprimeable number, because it can be changed into a prime (322312721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36146 + ... + 44171.

It is an arithmetic number, because the mean of its divisors is an integer number (80599113).

Almost surely, 2^322312121 is an apocalyptic number.

It is an amenable number.

322312121 is a deficient number, since it is larger than the sum of its proper divisors (84331).

322312121 is an equidigital number, since it uses as much as digits as its factorization.

322312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84330.

The product of its digits is 144, while the sum is 17.

The square root of 322312121 is about 17953.0532500742. The cubic root of 322312121 is about 685.6337899537.

Adding to 322312121 its reverse (121213223), we get a palindrome (443525344).

The spelling of 322312121 in words is "three hundred twenty-two million, three hundred twelve thousand, one hundred twenty-one".