122122221210211 has 4 divisors (see below), whose sum is σ = 122122458658800. Its totient is φ = 122121983761624.

The previous prime is 122122221210173. The next prime is 122122221210233. The reversal of 122122221210211 is 112012122221221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122122221210211 - 2¹⁷ = 122122221079139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122122221217211) 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, 117951151 + ... + 118982008.

It is an arithmetic number, because the mean of its divisors is an integer number (30530614664700).

Almost surely, 2^{122122221210211} is an apocalyptic number.

122122221210211 is a deficient number, since it is larger than the sum of its proper divisors (237448589).

122122221210211 is an equidigital number, since it uses as much as digits as its factorization.

122122221210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237448588.

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

Adding to 122122221210211 its reverse (112012122221221), we get a palindrome (234134343431432).

The spelling of 122122221210211 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred ten thousand, two hundred eleven".