2331134221 has 4 divisors (see below), whose sum is σ = 2510452252. Its totient is φ = 2151816192.

The previous prime is 2331134209. The next prime is 2331134227. The reversal of 2331134221 is 1224311332.

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 1084055625 + 1247078596 = 32925^2 + 35314^2 .

It is a cyclic number.

It is not a de Polignac number, because 2331134221 - 2²³ = 2322745613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2331134192 and 2331134201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331134227) 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, 89658996 + ... + 89659021.

It is an arithmetic number, because the mean of its divisors is an integer number (627613063).

Almost surely, 2^2331134221 is an apocalyptic number.

It is an amenable number.

2331134221 is a deficient number, since it is larger than the sum of its proper divisors (179318031).

2331134221 is a wasteful number, since it uses less digits than its factorization.

2331134221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179318030.

The product of its digits is 864, while the sum is 22.

The square root of 2331134221 is about 48281.8208128070. The cubic root of 2331134221 is about 1325.9355862400.

Adding to 2331134221 its reverse (1224311332), we get a palindrome (3555445553).

The spelling of 2331134221 in words is "two billion, three hundred thirty-one million, one hundred thirty-four thousand, two hundred twenty-one".