221130233201 has 2 divisors, whose sum is σ = 221130233202. Its totient is φ = 221130233200.

The previous prime is 221130233189. The next prime is 221130233227. The reversal of 221130233201 is 102332031122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209379456400 + 11750776801 = 457580^2 + 108401^2 .

It is a cyclic number.

It is not a de Polignac number, because 221130233201 - 2¹⁴ = 221130216817 is a prime.

It is not a weakly prime, because it can be changed into another prime (221130233801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110565116600 + 110565116601.

It is an arithmetic number, because the mean of its divisors is an integer number (110565116601).

Almost surely, 2^221130233201 is an apocalyptic number.

It is an amenable number.

221130233201 is a deficient number, since it is larger than the sum of its proper divisors (1).

221130233201 is an equidigital number, since it uses as much as digits as its factorization.

221130233201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 221130233201 its reverse (102332031122), we get a palindrome (323462264323).

The spelling of 221130233201 in words is "two hundred twenty-one billion, one hundred thirty million, two hundred thirty-three thousand, two hundred one".