210222222112221 has 16 divisors (see below), whose sum is σ = 306326750315328. Its totient is φ = 127178668716800.

The previous prime is 210222222112213. The next prime is 210222222112223. The reversal of 210222222112221 is 122211222222012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 210222222112221 - 2³ = 210222222112213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210222222112191 and 210222222112200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210222222112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5718446940 + ... + 5718483701.

It is an arithmetic number, because the mean of its divisors is an integer number (19145421894708).

Almost surely, 2^{210222222112221} is an apocalyptic number.

It is an amenable number.

210222222112221 is a deficient number, since it is larger than the sum of its proper divisors (96104528203107).

210222222112221 is a wasteful number, since it uses less digits than its factorization.

210222222112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11436931212.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 210222222112221 its reverse (122211222222012), we get a palindrome (332433444334233).

The spelling of 210222222112221 in words is "two hundred ten trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twenty-one".