1230221101 has 16 divisors (see below), whose sum is σ = 1326240000. Its totient is φ = 1137666816.

The previous prime is 1230221077. The next prime is 1230221119. The reversal of 1230221101 is 1011220321.

It is a cyclic number.

It is not a de Polignac number, because 1230221101 - 2⁷ = 1230220973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230221141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128985 + ... + 138193.

It is an arithmetic number, because the mean of its divisors is an integer number (82890000).

Almost surely, 2^1230221101 is an apocalyptic number.

It is an amenable number.

1230221101 is a deficient number, since it is larger than the sum of its proper divisors (96018899).

1230221101 is an equidigital number, since it uses as much as digits as its factorization.

1230221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9396.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1230221101 is about 35074.5078511445. The cubic root of 1230221101 is about 1071.5054655019.

Adding to 1230221101 its reverse (1011220321), we get a palindrome (2241441422).

The spelling of 1230221101 in words is "one billion, two hundred thirty million, two hundred twenty-one thousand, one hundred one".