212221222002222 has 8 divisors (see below), whose sum is σ = 424442444004456. Its totient is φ = 70740407334072.

The previous prime is 212221222002221. The next prime is 212221222002311. The reversal of 212221222002222 is 222200222122212.

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

212221222002222 is an admirable number.

It is a super-2 number, since 2×212221222002222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212221222002192 and 212221222002201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221222002221) 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, 17685101833513 + ... + 17685101833524.

It is an arithmetic number, because the mean of its divisors is an integer number (53055305500557).

Almost surely, 2^{212221222002222} is an apocalyptic number.

212221222002222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212221222002222 is a wasteful number, since it uses less digits than its factorization.

212221222002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35370203667042.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 212221222002222 its reverse (222200222122212), we get a palindrome (434421444124434).

The spelling of 212221222002222 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred twenty-two million, two thousand, two hundred twenty-two".