212051418611 has 4 divisors (see below), whose sum is σ = 214110170352. Its totient is φ = 209992666872.

The previous prime is 212051418587. The next prime is 212051418641. The reversal of 212051418611 is 116814150212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212051418611 - 2⁶ = 212051418547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212051418641) 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, 1029375716 + ... + 1029375921.

It is an arithmetic number, because the mean of its divisors is an integer number (53527542588).

Almost surely, 2^212051418611 is an apocalyptic number.

212051418611 is a deficient number, since it is larger than the sum of its proper divisors (2058751741).

212051418611 is a wasteful number, since it uses less digits than its factorization.

212051418611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058751740.

The product of its (nonzero) digits is 3840, while the sum is 32.

Adding to 212051418611 its reverse (116814150212), we get a palindrome (328865568823).

The spelling of 212051418611 in words is "two hundred twelve billion, fifty-one million, four hundred eighteen thousand, six hundred eleven".