212199585991212 has 24 divisors (see below), whose sum is σ = 495158090350000. Its totient is φ = 70729520610816.

The previous prime is 212199585991201. The next prime is 212199585991219.

212199585991212 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (212199585991219) 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, 459099337 + ... + 459561312.

Almost surely, 2^{212199585991212} is an apocalyptic number.

It is an amenable number.

212199585991212 is an abundant number, since it is smaller than the sum of its proper divisors (282958504358788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212199585991212 is a wasteful number, since it uses less digits than its factorization.

212199585991212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918679905 (or 918679903 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 66.

The spelling of 212199585991212 in words is "two hundred twelve trillion, one hundred ninety-nine billion, five hundred eighty-five million, nine hundred ninety-one thousand, two hundred twelve".