212164125999 has 8 divisors (see below), whose sum is σ = 323297715840. Its totient is φ = 121236643416.

The previous prime is 212164125997. The next prime is 212164126003. The reversal of 212164125999 is 999521461212.

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

It is not a de Polignac number, because 212164125999 - 2¹ = 212164125997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212164125997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5051526789 + ... + 5051526830.

It is an arithmetic number, because the mean of its divisors is an integer number (40412214480).

Almost surely, 2^212164125999 is an apocalyptic number.

212164125999 is a deficient number, since it is larger than the sum of its proper divisors (111133589841).

212164125999 is a wasteful number, since it uses less digits than its factorization.

212164125999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10103053629.

The product of its digits is 699840, while the sum is 51.

The spelling of 212164125999 in words is "two hundred twelve billion, one hundred sixty-four million, one hundred twenty-five thousand, nine hundred ninety-nine".