2153322221 has 8 divisors (see below), whose sum is σ = 2286207360. Its totient is φ = 2021128128.

The previous prime is 2153322209. The next prime is 2153322229. The reversal of 2153322221 is 1222233512.

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 2153322221 - 2¹⁴ = 2153305837 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 (2153322229) 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, 166331 + ... + 178808.

It is an arithmetic number, because the mean of its divisors is an integer number (285775920).

Almost surely, 2^2153322221 is an apocalyptic number.

It is an amenable number.

2153322221 is a deficient number, since it is larger than the sum of its proper divisors (132885139).

2153322221 is a wasteful number, since it uses less digits than its factorization.

2153322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345523.

The product of its digits is 1440, while the sum is 23.

The square root of 2153322221 is about 46403.9030793747. The cubic root of 2153322221 is about 1291.3273241865.

Adding to 2153322221 its reverse (1222233512), we get a palindrome (3375555733).

The spelling of 2153322221 in words is "two billion, one hundred fifty-three million, three hundred twenty-two thousand, two hundred twenty-one".