101330221 has 4 divisors (see below), whose sum is σ = 101591100. Its totient is φ = 101069344.

The previous prime is 101330209. The next prime is 101330233. The reversal of 101330221 is 122033101.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (101330209) and next prime (101330233).

It can be written as a sum of positive squares in 2 ways, for example, as 13176900 + 88153321 = 3630^2 + 9389^2 .

It is a cyclic number.

It is not a de Polignac number, because 101330221 - 2⁵ = 101330189 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 (101334221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129856 + ... + 130633.

It is an arithmetic number, because the mean of its divisors is an integer number (25397775).

Almost surely, 2^101330221 is an apocalyptic number.

It is an amenable number.

101330221 is a deficient number, since it is larger than the sum of its proper divisors (260879).

101330221 is an equidigital number, since it uses as much as digits as its factorization.

101330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260878.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 101330221 is about 10066.2913230246. The cubic root of 101330221 is about 466.2079373728.

Adding to 101330221 its reverse (122033101), we get a palindrome (223363322).

The spelling of 101330221 in words is "one hundred one million, three hundred thirty thousand, two hundred twenty-one".