101335221 has 24 divisors (see below), whose sum is σ = 159275480. Its totient is φ = 61710336.

The previous prime is 101335207. The next prime is 101335237. The reversal of 101335221 is 122533101.

101335221 is a `hidden beast` number, since 10 + 133 + 522 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1535121 + 99800100 = 1239^2 + 9990^2 .

It is not a de Polignac number, because 101335221 - 2⁷ = 101335093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101335194 and 101335203.

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 23 ways as a sum of consecutive naturals, for example, 6885 + ... + 15813.

Almost surely, 2^101335221 is an apocalyptic number.

It is an amenable number.

101335221 is a deficient number, since it is larger than the sum of its proper divisors (57940259).

101335221 is a wasteful number, since it uses less digits than its factorization.

101335221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9045 (or 9042 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 101335221 is about 10066.5396735919. The cubic root of 101335221 is about 466.2156053759.

Adding to 101335221 its reverse (122533101), we get a palindrome (223868322).

The spelling of 101335221 in words is "one hundred one million, three hundred thirty-five thousand, two hundred twenty-one".