36820042221 has 8 divisors (see below), whose sum is σ = 51677252320. Its totient is φ = 23254763472.

The previous prime is 36820042219. The next prime is 36820042289. The reversal of 36820042221 is 12224002863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36820042221 - 2¹ = 36820042219 is a prime.

It is a super-2 number, since 2×36820042221² (a number of 22 digits) contains 22 as substring.

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 (36820042201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322982770 + ... + 322982883.

It is an arithmetic number, because the mean of its divisors is an integer number (6459656540).

Almost surely, 2^36820042221 is an apocalyptic number.

It is an amenable number.

36820042221 is a deficient number, since it is larger than the sum of its proper divisors (14857210099).

36820042221 is a wasteful number, since it uses less digits than its factorization.

36820042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645965675.

The product of its (nonzero) digits is 9216, while the sum is 30.

The spelling of 36820042221 in words is "thirty-six billion, eight hundred twenty million, forty-two thousand, two hundred twenty-one".