212167011020217 has 16 divisors (see below), whose sum is σ = 308965824111360. Its totient is φ = 128436374523600.

The previous prime is 212167011020189. The next prime is 212167011020221. The reversal of 212167011020217 is 712020110761212.

It is not a de Polignac number, because 212167011020217 - 2⁸ = 212167011019961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (212167011020017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3742290259 + ... + 3742346952.

It is an arithmetic number, because the mean of its divisors is an integer number (19310364006960).

Almost surely, 2^{212167011020217} is an apocalyptic number.

It is an amenable number.

212167011020217 is a deficient number, since it is larger than the sum of its proper divisors (96798813091143).

212167011020217 is a wasteful number, since it uses less digits than its factorization.

212167011020217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7484638084.

The product of its (nonzero) digits is 4704, while the sum is 33.

Adding to 212167011020217 its reverse (712020110761212), we get a palindrome (924187121781429).

The spelling of 212167011020217 in words is "two hundred twelve trillion, one hundred sixty-seven billion, eleven million, twenty thousand, two hundred seventeen".