36193951221 has 8 divisors (see below), whose sum is σ = 48322354464. Its totient is φ = 24097424400.

The previous prime is 36193951187. The next prime is 36193951307. The reversal of 36193951221 is 12215939163.

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

It is not a de Polignac number, because 36193951221 - 2¹¹ = 36193949173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36193951421) 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, 7966455 + ... + 7970996.

It is an arithmetic number, because the mean of its divisors is an integer number (6040294308).

Almost surely, 2^36193951221 is an apocalyptic number.

It is an amenable number.

36193951221 is a deficient number, since it is larger than the sum of its proper divisors (12128403243).

36193951221 is a wasteful number, since it uses less digits than its factorization.

36193951221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15938211.

The product of its digits is 87480, while the sum is 42.

The spelling of 36193951221 in words is "thirty-six billion, one hundred ninety-three million, nine hundred fifty-one thousand, two hundred twenty-one".