212021100112222 has 8 divisors (see below), whose sum is σ = 336739394295936. Its totient is φ = 99774635346912.

The previous prime is 212021100112141. The next prime is 212021100112223. The reversal of 212021100112222 is 222211001120212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212021100112222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021100112223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3117957354558 + ... + 3117957354625.

It is an arithmetic number, because the mean of its divisors is an integer number (42092424286992).

Almost surely, 2^{212021100112222} is an apocalyptic number.

212021100112222 is a deficient number, since it is larger than the sum of its proper divisors (124718294183714).

212021100112222 is a wasteful number, since it uses less digits than its factorization.

212021100112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6235914709202.

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

Adding to 212021100112222 its reverse (222211001120212), we get a palindrome (434232101232434).

The spelling of 212021100112222 in words is "two hundred twelve trillion, twenty-one billion, one hundred million, one hundred twelve thousand, two hundred twenty-two".