321012034112221 has 4 divisors (see below), whose sum is σ = 321012134087200. Its totient is φ = 321011934137244.

The previous prime is 321012034112219. The next prime is 321012034112267. The reversal of 321012034112221 is 122211430210123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321012034112221 - 2¹ = 321012034112219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321012034112621) 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, 45005601 + ... + 51648118.

It is an arithmetic number, because the mean of its divisors is an integer number (80253033521800).

Almost surely, 2^{321012034112221} is an apocalyptic number.

It is an amenable number.

321012034112221 is a deficient number, since it is larger than the sum of its proper divisors (99974979).

321012034112221 is an equidigital number, since it uses as much as digits as its factorization.

321012034112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99974978.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 321012034112221 its reverse (122211430210123), we get a palindrome (443223464322344).

The spelling of 321012034112221 in words is "three hundred twenty-one trillion, twelve billion, thirty-four million, one hundred twelve thousand, two hundred twenty-one".