212021122210112 has 28 divisors (see below), whose sum is σ = 420730184104116. Its totient is φ = 106010367160320.

The previous prime is 212021122210103. The next prime is 212021122210129. The reversal of 212021122210112 is 211012221120212.

It can be written as a sum of positive squares in 2 ways, for example, as 130490046554176 + 81531075655936 = 11423224^2 + 9029456^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36152912 + ... + 41606192.

Almost surely, 2^{212021122210112} is an apocalyptic number.

It is an amenable number.

212021122210112 is a deficient number, since it is larger than the sum of its proper divisors (208709061894004).

212021122210112 is an equidigital number, since it uses as much as digits as its factorization.

212021122210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060786 (or 6060776 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212021122210112 its reverse (211012221120212), we get a palindrome (423033343330324).

The spelling of 212021122210112 in words is "two hundred twelve trillion, twenty-one billion, one hundred twenty-two million, two hundred ten thousand, one hundred twelve".