212051236466 has 16 divisors (see below), whose sum is σ = 318673232640. Its totient is φ = 105826888560.

The previous prime is 212051236459. The next prime is 212051236483. The reversal of 212051236466 is 664632150212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9179711 + ... + 9202781.

It is an arithmetic number, because the mean of its divisors is an integer number (19917077040).

Almost surely, 2^212051236466 is an apocalyptic number.

212051236466 is a deficient number, since it is larger than the sum of its proper divisors (106621996174).

212051236466 is a wasteful number, since it uses less digits than its factorization.

212051236466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31489.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 212051236466 its reverse (664632150212), we get a palindrome (876683386678).

The spelling of 212051236466 in words is "two hundred twelve billion, fifty-one million, two hundred thirty-six thousand, four hundred sixty-six".