36220688521 has 4 divisors (see below), whose sum is σ = 36316258000. Its totient is φ = 36125119044.

The previous prime is 36220688429. The next prime is 36220688531. The reversal of 36220688521 is 12588602263.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12588602263 = 8009 ⋅1571807.

It is a cyclic number.

It is not a de Polignac number, because 36220688521 - 2³⁵ = 1860950153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36220688531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47784171 + ... + 47784928.

It is an arithmetic number, because the mean of its divisors is an integer number (9079064500).

Almost surely, 2^36220688521 is an apocalyptic number.

It is an amenable number.

36220688521 is a deficient number, since it is larger than the sum of its proper divisors (95569479).

36220688521 is an equidigital number, since it uses as much as digits as its factorization.

36220688521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95569478.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 36220688521 in words is "thirty-six billion, two hundred twenty million, six hundred eighty-eight thousand, five hundred twenty-one".