220221002231 has 2 divisors, whose sum is σ = 220221002232. Its totient is φ = 220221002230.

The previous prime is 220221002219. The next prime is 220221002279. The reversal of 220221002231 is 132200122022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220221002231 - 2¹⁰ = 220221001207 is a prime.

It is a super-2 number, since 2×220221002231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220221002431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110501115 + 110110501116.

It is an arithmetic number, because the mean of its divisors is an integer number (110110501116).

Almost surely, 2^220221002231 is an apocalyptic number.

220221002231 is a deficient number, since it is larger than the sum of its proper divisors (1).

220221002231 is an equidigital number, since it uses as much as digits as its factorization.

220221002231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 220221002231 its reverse (132200122022), we get a palindrome (352421124253).

The spelling of 220221002231 in words is "two hundred twenty billion, two hundred twenty-one million, two thousand, two hundred thirty-one".