12211553165 has 8 divisors (see below), whose sum is σ = 16747272960. Its totient is φ = 8373636432.

The previous prime is 12211553083. The next prime is 12211553171. The reversal of 12211553165 is 56135511221.

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

It is not a de Polignac number, because 12211553165 - 2¹⁰ = 12211552141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174450725 + ... + 174450794.

It is an arithmetic number, because the mean of its divisors is an integer number (2093409120).

Almost surely, 2^12211553165 is an apocalyptic number.

It is an amenable number.

12211553165 is a deficient number, since it is larger than the sum of its proper divisors (4535719795).

12211553165 is an equidigital number, since it uses as much as digits as its factorization.

12211553165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348901531.

The product of its digits is 9000, while the sum is 32.

The spelling of 12211553165 in words is "twelve billion, two hundred eleven million, five hundred fifty-three thousand, one hundred sixty-five".