36500751221 has 24 divisors (see below), whose sum is σ = 42992716032. Its totient is φ = 30854172800.

The previous prime is 36500751167. The next prime is 36500751223. The reversal of 36500751221 is 12215700563.

It is a de Polignac number, because none of the positive numbers 2^k-36500751221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36500751223) 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, 63836 + ... + 277626.

It is an arithmetic number, because the mean of its divisors is an integer number (1791363168).

Almost surely, 2^36500751221 is an apocalyptic number.

It is an amenable number.

36500751221 is a deficient number, since it is larger than the sum of its proper divisors (6491964811).

36500751221 is a wasteful number, since it uses less digits than its factorization.

36500751221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213913 (or 213902 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 36500751221 in words is "thirty-six billion, five hundred million, seven hundred fifty-one thousand, two hundred twenty-one".