2152202321 has 4 divisors (see below), whose sum is σ = 2162402544. Its totient is φ = 2142002100.

The previous prime is 2152202303. The next prime is 2152202357. The reversal of 2152202321 is 1232022512.

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 2152202321 - 2¹⁸ = 2151940177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2152202293 and 2152202302.

It is not an unprimeable number, because it can be changed into a prime (2152202821) 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, 5099795 + ... + 5100216.

It is an arithmetic number, because the mean of its divisors is an integer number (540600636).

Almost surely, 2^2152202321 is an apocalyptic number.

It is an amenable number.

2152202321 is a deficient number, since it is larger than the sum of its proper divisors (10200223).

2152202321 is a wasteful number, since it uses less digits than its factorization.

2152202321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200222.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2152202321 is about 46391.8346371428. The cubic root of 2152202321 is about 1291.1034208253.

Adding to 2152202321 its reverse (1232022512), we get a palindrome (3384224833).

The spelling of 2152202321 in words is "two billion, one hundred fifty-two million, two hundred two thousand, three hundred twenty-one".