122222111021211 has 8 divisors (see below), whose sum is σ = 163735150310464. Its totient is φ = 81095239539720.

The previous prime is 122222111021209. The next prime is 122222111021221. The reversal of 122222111021211 is 112120111222221.

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

It is not a de Polignac number, because 122222111021211 - 2¹ = 122222111021209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122222111021221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 96541951201 + ... + 96541952466.

It is an arithmetic number, because the mean of its divisors is an integer number (20466893788808).

Almost surely, 2^{122222111021211} is an apocalyptic number.

122222111021211 is a deficient number, since it is larger than the sum of its proper divisors (41513039289253).

122222111021211 is a wasteful number, since it uses less digits than its factorization.

122222111021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193083903881.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 122222111021211 its reverse (112120111222221), we get a palindrome (234342222243432).

The spelling of 122222111021211 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, one hundred eleven million, twenty-one thousand, two hundred eleven".