211211211220222 has 8 divisors (see below), whose sum is σ = 316831608286200. Its totient is φ = 105600675124824.

The previous prime is 211211211220211. The next prime is 211211211220249. The reversal of 211211211220222 is 222022112112112.

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

It is a super-2 number, since 2×211211211220222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211211211220193 and 211211211220202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2465189097 + ... + 2465274772.

It is an arithmetic number, because the mean of its divisors is an integer number (39603951035775).

Almost surely, 2^{211211211220222} is an apocalyptic number.

211211211220222 is a deficient number, since it is larger than the sum of its proper divisors (105620397065978).

211211211220222 is a wasteful number, since it uses less digits than its factorization.

211211211220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930485290.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 211211211220222 its reverse (222022112112112), we get a palindrome (433233323332334).

The spelling of 211211211220222 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred eleven million, two hundred twenty thousand, two hundred twenty-two".