2122130321 has 8 divisors (see below), whose sum is σ = 2143901760. Its totient is φ = 2100381552.

The previous prime is 2122130317. The next prime is 2122130359. The reversal of 2122130321 is 1230312212.

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

It is a cyclic number.

It is not a de Polignac number, because 2122130321 - 2² = 2122130317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122130321.

It is not an unprimeable number, because it can be changed into a prime (2122130371) 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, 233366 + ... + 242288.

It is an arithmetic number, because the mean of its divisors is an integer number (267987720).

Almost surely, 2^2122130321 is an apocalyptic number.

It is an amenable number.

2122130321 is a deficient number, since it is larger than the sum of its proper divisors (21771439).

2122130321 is a wasteful number, since it uses less digits than its factorization.

2122130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11335.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2122130321 is about 46066.5857319598. The cubic root of 2122130321 is about 1285.0618089141.

Adding to 2122130321 its reverse (1230312212), we get a palindrome (3352442533).

The spelling of 2122130321 in words is "two billion, one hundred twenty-two million, one hundred thirty thousand, three hundred twenty-one".