136099709221 has 16 divisors (see below), whose sum is σ = 156567147264. Its totient is φ = 115890868224.

The previous prime is 136099709219. The next prime is 136099709227. The reversal of 136099709221 is 122907990631.

It is a cyclic number.

It is not a de Polignac number, because 136099709221 - 2¹ = 136099709219 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 (136099709227) 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, 569616 + ... + 772438.

It is an arithmetic number, because the mean of its divisors is an integer number (9785446704).

Almost surely, 2^136099709221 is an apocalyptic number.

It is an amenable number.

136099709221 is a deficient number, since it is larger than the sum of its proper divisors (20467438043).

136099709221 is a wasteful number, since it uses less digits than its factorization.

136099709221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203460.

The product of its (nonzero) digits is 367416, while the sum is 49.

The spelling of 136099709221 in words is "one hundred thirty-six billion, ninety-nine million, seven hundred nine thousand, two hundred twenty-one".