122222221211 has 8 divisors (see below), whose sum is σ = 122583989424. Its totient is φ = 121860541440.

The previous prime is 122222221159. The next prime is 122222221229. The reversal of 122222221211 is 112122222221.

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

It is a cyclic number.

It is not a de Polignac number, because 122222221211 - 2¹⁰ = 122222220187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122222221111) by changing a digit.

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, 3626540 + ... + 3660086.

It is an arithmetic number, because the mean of its divisors is an integer number (15322998678).

Almost surely, 2^122222221211 is an apocalyptic number.

122222221211 is a deficient number, since it is larger than the sum of its proper divisors (361768213).

122222221211 is a wasteful number, since it uses less digits than its factorization.

122222221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44221.

The product of its digits is 256, while the sum is 20.

Adding to 122222221211 its reverse (112122222221), we get a palindrome (234344443432).

The spelling of 122222221211 in words is "one hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred eleven".