321021201121 has 16 divisors (see below), whose sum is σ = 335818690560. Its totient is φ = 306294274000.

The previous prime is 321021201077. The next prime is 321021201131. The reversal of 321021201121 is 121102120123.

It is a cyclic number.

It is not a de Polignac number, because 321021201121 - 2¹⁵ = 321021168353 is a prime.

It is a super-2 number, since 2×321021201121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321021201095 and 321021201104.

It is not an unprimeable number, because it can be changed into a prime (321021201131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35811786 + ... + 35820748.

It is an arithmetic number, because the mean of its divisors is an integer number (20988668160).

Almost surely, 2^321021201121 is an apocalyptic number.

It is an amenable number.

321021201121 is a deficient number, since it is larger than the sum of its proper divisors (14797489439).

321021201121 is a wasteful number, since it uses less digits than its factorization.

321021201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12716.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 321021201121 its reverse (121102120123), we get a palindrome (442123321244).

The spelling of 321021201121 in words is "three hundred twenty-one billion, twenty-one million, two hundred one thousand, one hundred twenty-one".