212143144011009 has 4 divisors (see below), whose sum is σ = 282857525348016. Its totient is φ = 141428762674004.

The previous prime is 212143144010957. The next prime is 212143144011089. The reversal of 212143144011009 is 900110441341212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212143144011009 - 2⁴⁴ = 194550957966593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212143144011089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35357190668499 + ... + 35357190668504.

It is an arithmetic number, because the mean of its divisors is an integer number (70714381337004).

Almost surely, 2^{212143144011009} is an apocalyptic number.

It is an amenable number.

212143144011009 is a deficient number, since it is larger than the sum of its proper divisors (70714381337007).

212143144011009 is an equidigital number, since it uses as much as digits as its factorization.

212143144011009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70714381337006.

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 212143144011009 in words is "two hundred twelve trillion, one hundred forty-three billion, one hundred forty-four million, eleven thousand, nine".