2130331203221 has 8 divisors (see below), whose sum is σ = 2294215871640. Its totient is φ = 1966448397312.

The previous prime is 2130331203197. The next prime is 2130331203317. The reversal of 2130331203221 is 1223021330312.

It can be written as a sum of positive squares in 4 ways, for example, as 35914419121 + 2094416784100 = 189511^2 + 1447210^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130331203221 is a prime.

It is a super-3 number, since 3×2130331203221³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130331202221) 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, 2714345 + ... + 3410033.

It is an arithmetic number, because the mean of its divisors is an integer number (286776983955).

Almost surely, 2^{2130331203221} is an apocalyptic number.

It is an amenable number.

2130331203221 is a deficient number, since it is larger than the sum of its proper divisors (163884668419).

2130331203221 is a wasteful number, since it uses less digits than its factorization.

2130331203221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931255.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2130331203221 its reverse (1223021330312), we get a palindrome (3353352533533).

The spelling of 2130331203221 in words is "two trillion, one hundred thirty billion, three hundred thirty-one million, two hundred three thousand, two hundred twenty-one".