212167115611 has 8 divisors (see below), whose sum is σ = 233746670448. Its totient is φ = 190969500000.

The previous prime is 212167115569. The next prime is 212167115621. The reversal of 212167115611 is 116511761212.

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

It is a cyclic number.

It is not a de Polignac number, because 212167115611 - 2⁹ = 212167115099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212167115621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95483640 + ... + 95485861.

It is an arithmetic number, because the mean of its divisors is an integer number (29218333806).

Almost surely, 2^212167115611 is an apocalyptic number.

212167115611 is a deficient number, since it is larger than the sum of its proper divisors (21579554837).

212167115611 is a wasteful number, since it uses less digits than its factorization.

212167115611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190969613.

The product of its digits is 5040, while the sum is 34.

Adding to 212167115611 its reverse (116511761212), we get a palindrome (328678876823).

The spelling of 212167115611 in words is "two hundred twelve billion, one hundred sixty-seven million, one hundred fifteen thousand, six hundred eleven".