212121112022193 has 16 divisors (see below), whose sum is σ = 308544044884416. Its totient is φ = 128556480719040.

The previous prime is 212121112022173. The next prime is 212121112022203. The reversal of 212121112022193 is 391220211121212.

It is not a de Polignac number, because 212121112022193 - 2¹² = 212121112018097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212121112022193.

It is not an unprimeable number, because it can be changed into a prime (212121112022123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 41788230 + ... + 46588607.

It is an arithmetic number, because the mean of its divisors is an integer number (19284002805276).

Almost surely, 2^{212121112022193} is an apocalyptic number.

It is an amenable number.

212121112022193 is a deficient number, since it is larger than the sum of its proper divisors (96422932862223).

212121112022193 is a wasteful number, since it uses less digits than its factorization.

212121112022193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88449584.

The product of its (nonzero) digits is 1728, while the sum is 30.

The spelling of 212121112022193 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred twelve million, twenty-two thousand, one hundred ninety-three".