212165141099 has 8 divisors (see below), whose sum is σ = 220583782608. Its totient is φ = 203900970240.

The previous prime is 212165141053. The next prime is 212165141113. The reversal of 212165141099 is 990141561212.

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

It is a cyclic number.

It is not a de Polignac number, because 212165141099 - 2²⁰ = 212164092523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212165141299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38614862 + ... + 38620355.

It is an arithmetic number, because the mean of its divisors is an integer number (27572972826).

Almost surely, 2^212165141099 is an apocalyptic number.

212165141099 is a deficient number, since it is larger than the sum of its proper divisors (8418641509).

212165141099 is an equidigital number, since it uses as much as digits as its factorization.

212165141099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77235325.

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 212165141099 in words is "two hundred twelve billion, one hundred sixty-five million, one hundred forty-one thousand, ninety-nine".