211211222222122 has 8 divisors (see below), whose sum is σ = 316817294479200. Its totient is φ = 105605457395724.

The previous prime is 211211222222093. The next prime is 211211222222129. The reversal of 211211222222122 is 221222222112112.

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

It is a super-2 number, since 2×211211222222122² (a number of 29 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (211211222222129) 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, 75132372 + ... + 77892847.

It is an arithmetic number, because the mean of its divisors is an integer number (39602161809900).

Almost surely, 2^{211211222222122} is an apocalyptic number.

211211222222122 is a deficient number, since it is larger than the sum of its proper divisors (105606072257078).

211211222222122 is a wasteful number, since it uses less digits than its factorization.

211211222222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153715340.

The product of its digits is 1024, while the sum is 25.

Adding to 211211222222122 its reverse (221222222112112), we get a palindrome (432433444334234).

The spelling of 211211222222122 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-two".