220102231 has 2 divisors, whose sum is σ = 220102232. Its totient is φ = 220102230.

The previous prime is 220102189. The next prime is 220102241. The reversal of 220102231 is 132201022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220102231 - 2¹⁷ = 219971159 is a prime.

It is a super-2 number, since 2×220102231² = 96889984182354722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220102241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110051115 + 110051116.

It is an arithmetic number, because the mean of its divisors is an integer number (110051116).

Almost surely, 2^220102231 is an apocalyptic number.

220102231 is a deficient number, since it is larger than the sum of its proper divisors (1).

220102231 is an equidigital number, since it uses as much as digits as its factorization.

220102231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 220102231 is about 14835.8427802400. The cubic root of 220102231 is about 603.7745666539.

Adding to 220102231 its reverse (132201022), we get a palindrome (352303253).

The spelling of 220102231 in words is "two hundred twenty million, one hundred two thousand, two hundred thirty-one".