212131113266 has 8 divisors (see below), whose sum is σ = 318524372784. Its totient is φ = 105956322340.

The previous prime is 212131113211. The next prime is 212131113343. The reversal of 212131113266 is 662311131212.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 54614720 + ... + 54618603.

It is an arithmetic number, because the mean of its divisors is an integer number (39815546598).

Almost surely, 2^212131113266 is an apocalyptic number.

212131113266 is a deficient number, since it is larger than the sum of its proper divisors (106393259518).

212131113266 is a wasteful number, since it uses less digits than its factorization.

212131113266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109234296.

The product of its digits is 2592, while the sum is 29.

Adding to 212131113266 its reverse (662311131212), we get a palindrome (874442244478).

The spelling of 212131113266 in words is "two hundred twelve billion, one hundred thirty-one million, one hundred thirteen thousand, two hundred sixty-six".