2133221330 has 16 divisors (see below), whose sum is σ = 3892399704. Its totient is φ = 841599360.

The previous prime is 2133221323. The next prime is 2133221339. The reversal of 2133221330 is 331223312.

It can be written as a sum of positive squares in 4 ways, for example, as 1542682729 + 590538601 = 39277^2 + 24301^2 .

It is not an unprimeable number, because it can be changed into a prime (2133221339) 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, 1460381 + ... + 1461840.

Almost surely, 2^2133221330 is an apocalyptic number.

2133221330 is a deficient number, since it is larger than the sum of its proper divisors (1759178374).

2133221330 is a wasteful number, since it uses less digits than its factorization.

2133221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922301.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 2133221330 is about 46186.8090476058. The cubic root of 2133221330 is about 1287.2966503238.

Adding to 2133221330 its reverse (331223312), we get a palindrome (2464444642).

The spelling of 2133221330 in words is "two billion, one hundred thirty-three million, two hundred twenty-one thousand, three hundred thirty".