36312520221 has 48 divisors (see below), whose sum is σ = 55120440960. Its totient is φ = 22992076800.

The previous prime is 36312520219. The next prime is 36312520243. The reversal of 36312520221 is 12202521363.

It is a happy number.

36312520221 is a `hidden beast` number, since 3 + 631 + 2 + 5 + 2 + 0 + 2 + 21 = 666.

It is not a de Polignac number, because 36312520221 - 2¹ = 36312520219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36312520721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20161521 + ... + 20163321.

It is an arithmetic number, because the mean of its divisors is an integer number (1148342520).

Almost surely, 2^36312520221 is an apocalyptic number.

It is an amenable number.

36312520221 is a deficient number, since it is larger than the sum of its proper divisors (18807920739).

36312520221 is a wasteful number, since it uses less digits than its factorization.

36312520221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466 (or 2463 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The spelling of 36312520221 in words is "thirty-six billion, three hundred twelve million, five hundred twenty thousand, two hundred twenty-one".