321121322121 has 8 divisors (see below), whose sum is σ = 431242063840. Its totient is φ = 212540730912.

The previous prime is 321121322111. The next prime is 321121322153. The reversal of 321121322121 is 121223121123.

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

It is not a de Polignac number, because 321121322121 - 2¹¹ = 321121320073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321121322111) 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, 385037140 + ... + 385037973.

It is an arithmetic number, because the mean of its divisors is an integer number (53905257980).

Almost surely, 2^321121322121 is an apocalyptic number.

It is an amenable number.

321121322121 is a deficient number, since it is larger than the sum of its proper divisors (110120741719).

321121322121 is a wasteful number, since it uses less digits than its factorization.

321121322121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770075255.

The product of its digits is 288, while the sum is 21.

Adding to 321121322121 its reverse (121223121123), we get a palindrome (442344443244).

The spelling of 321121322121 in words is "three hundred twenty-one billion, one hundred twenty-one million, three hundred twenty-two thousand, one hundred twenty-one".