3122002032221 has 4 divisors (see below), whose sum is σ = 3122064331932. Its totient is φ = 3121939732512.

The previous prime is 3122002032173. The next prime is 3122002032223. The reversal of 3122002032221 is 1222302002213.

It is a happy number.

3122002032221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1722619500196 + 1399382532025 = 1312486^2 + 1182955^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122002032221 - 2⁶ = 3122002032157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3122002032193 and 3122002032202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122002032223) 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, 31074626 + ... + 31174931.

It is an arithmetic number, because the mean of its divisors is an integer number (780516082983).

Almost surely, 2^{3122002032221} is an apocalyptic number.

It is an amenable number.

3122002032221 is a deficient number, since it is larger than the sum of its proper divisors (62299711).

3122002032221 is an equidigital number, since it uses as much as digits as its factorization.

3122002032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62299710.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 3122002032221 its reverse (1222302002213), we get a palindrome (4344304034434).

The spelling of 3122002032221 in words is "three trillion, one hundred twenty-two billion, two million, thirty-two thousand, two hundred twenty-one".