211022222222 has 16 divisors (see below), whose sum is σ = 364953732192. Its totient is φ = 89637757440.

The previous prime is 211022222171. The next prime is 211022222261. The reversal of 211022222222 is 222222220112.

211022222222 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211022222222² (a number of 23 digits) contains 22 as substring.

211022222222 is a modest number, since divided by 222222 gives 211022 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 211022222194 and 211022222203.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 66693179 + ... + 66696342.

It is an arithmetic number, because the mean of its divisors is an integer number (22809608262).

Almost surely, 2^211022222222 is an apocalyptic number.

211022222222 is a deficient number, since it is larger than the sum of its proper divisors (153931509970).

211022222222 is a wasteful number, since it uses less digits than its factorization.

211022222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133389643.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 211022222222 its reverse (222222220112), we get a palindrome (433244442334).

The spelling of 211022222222 in words is "two hundred eleven billion, twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".