36099221 has 16 divisors (see below), whose sum is σ = 39567360. Its totient is φ = 32808240.

The previous prime is 36099199. The next prime is 36099233. The reversal of 36099221 is 12299063.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36099221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36099241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98180 + ... + 98546.

It is an arithmetic number, because the mean of its divisors is an integer number (2472960).

Almost surely, 2^36099221 is an apocalyptic number.

36099221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

36099221 is a deficient number, since it is larger than the sum of its proper divisors (3468139).

36099221 is a wasteful number, since it uses less digits than its factorization.

36099221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 36099221 is about 6008.2627272782. The cubic root of 36099221 is about 330.4957989583.

The spelling of 36099221 in words is "thirty-six million, ninety-nine thousand, two hundred twenty-one".