212021022210112 has 14 divisors (see below), whose sum is σ = 420729215948318. Its totient is φ = 106010511105024.

The previous prime is 212021022210097. The next prime is 212021022210119. The reversal of 212021022210112 is 211012220120212.

It can be written as a sum of positive squares in only one way, i.e., 158629591590976 + 53391430619136 = 12594824^2 + 7306944^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212021022210112.

It is not an unprimeable number, because it can be changed into a prime (212021022210119) by changing a digit.

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 as a sum of consecutive naturals, namely, 1656414235953 + ... + 1656414236080.

Almost surely, 2^{212021022210112} is an apocalyptic number.

It is an amenable number.

212021022210112 is a deficient number, since it is larger than the sum of its proper divisors (208708193738206).

212021022210112 is an equidigital number, since it uses as much as digits as its factorization.

212021022210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312828472045 (or 3312828472035 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212021022210112 its reverse (211012220120212), we get a palindrome (423033242330324).

The spelling of 212021022210112 in words is "two hundred twelve trillion, twenty-one billion, twenty-two million, two hundred ten thousand, one hundred twelve".