212221112132 has 12 divisors (see below), whose sum is σ = 371566461420. Its totient is φ = 106059266016.

The previous prime is 212221112039. The next prime is 212221112219. The reversal of 212221112132 is 231211122212.

212221112132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42760449796 + 169460662336 = 206786^2 + 411656^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12813203 + ... + 12829754.

It is an arithmetic number, because the mean of its divisors is an integer number (30963871785).

Almost surely, 2^212221112132 is an apocalyptic number.

It is an amenable number.

212221112132 is a deficient number, since it is larger than the sum of its proper divisors (159345349288).

212221112132 is a wasteful number, since it uses less digits than its factorization.

212221112132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25645030 (or 25645028 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

Adding to 212221112132 its reverse (231211122212), we get a palindrome (443432234344).

The spelling of 212221112132 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred twelve thousand, one hundred thirty-two".