122211221220111 has 8 divisors (see below), whose sum is σ = 162971216397360. Its totient is φ = 81462686761472.

The previous prime is 122211221220097. The next prime is 122211221220149. The reversal of 122211221220111 is 111022122112221.

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 122211221220111 - 2¹⁵ = 122211221187343 is a prime.

It is a super-2 number, since 2×122211221220111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211221220211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2865154770 + ... + 2865197423.

It is an arithmetic number, because the mean of its divisors is an integer number (20371402049670).

Almost surely, 2^{122211221220111} is an apocalyptic number.

122211221220111 is a deficient number, since it is larger than the sum of its proper divisors (40759995177249).

122211221220111 is an equidigital number, since it uses as much as digits as its factorization.

122211221220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730359305.

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

Adding to 122211221220111 its reverse (111022122112221), we get a palindrome (233233343332332).

The spelling of 122211221220111 in words is "one hundred twenty-two trillion, two hundred eleven billion, two hundred twenty-one million, two hundred twenty thousand, one hundred eleven".