212217611267211 has 16 divisors (see below), whose sum is σ = 308686750393728. Its totient is φ = 128613988872000.

The previous prime is 212217611267171. The next prime is 212217611267257. The reversal of 212217611267211 is 112762116712212.

It is not a de Polignac number, because 212217611267211 - 2⁹ = 212217611266699 is a prime.

It is a super-2 number, since 2×212217611267211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212217611265211) 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, 67060690 + ... + 70153911.

It is an arithmetic number, because the mean of its divisors is an integer number (19292921899608).

Almost surely, 2^{212217611267211} is an apocalyptic number.

212217611267211 is a deficient number, since it is larger than the sum of its proper divisors (96469139126517).

212217611267211 is a wasteful number, since it uses less digits than its factorization.

212217611267211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137261482.

The product of its digits is 56448, while the sum is 42.

Adding to 212217611267211 its reverse (112762116712212), we get a palindrome (324979727979423).

The spelling of 212217611267211 in words is "two hundred twelve trillion, two hundred seventeen billion, six hundred eleven million, two hundred sixty-seven thousand, two hundred eleven".