212210112231321 has 16 divisors (see below), whose sum is σ = 299591500114944. Its totient is φ = 133151108108544.

The previous prime is 212210112231317. The next prime is 212210112231391. The reversal of 212210112231321 is 123132211012212.

It is not a de Polignac number, because 212210112231321 - 2² = 212210112231317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212210112231291 and 212210112231300.

It is not an unprimeable number, because it can be changed into a prime (212210112231301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16089480 + ... + 26139846.

It is an arithmetic number, because the mean of its divisors is an integer number (18724468757184).

Almost surely, 2^{212210112231321} is an apocalyptic number.

It is an amenable number.

212210112231321 is a deficient number, since it is larger than the sum of its proper divisors (87381387883623).

212210112231321 is a wasteful number, since it uses less digits than its factorization.

212210112231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10464400.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 212210112231321 its reverse (123132211012212), we get a palindrome (335342323243533).

The spelling of 212210112231321 in words is "two hundred twelve trillion, two hundred ten billion, one hundred twelve million, two hundred thirty-one thousand, three hundred twenty-one".