130332221 has 2 divisors, whose sum is σ = 130332222. Its totient is φ = 130332220.

The previous prime is 130332211. The next prime is 130332233. The reversal of 130332221 is 122233031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128006596 + 2325625 = 11314^2 + 1525^2 .

It is a cyclic number.

It is not a de Polignac number, because 130332221 - 2⁶ = 130332157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130332221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130332211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65166110 + 65166111.

It is an arithmetic number, because the mean of its divisors is an integer number (65166111).

Almost surely, 2^130332221 is an apocalyptic number.

It is an amenable number.

130332221 is a deficient number, since it is larger than the sum of its proper divisors (1).

130332221 is an equidigital number, since it uses as much as digits as its factorization.

130332221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 130332221 is about 11416.3138096322. The cubic root of 130332221 is about 507.0108641031.

Adding to 130332221 its reverse (122233031), we get a palindrome (252565252).

The spelling of 130332221 in words is "one hundred thirty million, three hundred thirty-two thousand, two hundred twenty-one".