122001220111 has 8 divisors (see below), whose sum is σ = 126701721344. Its totient is φ = 117385412760.

The previous prime is 122001220057. The next prime is 122001220139. The reversal of 122001220111 is 111022100221.

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

It is not a de Polignac number, because 122001220111 - 2¹⁷ = 122001089039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122001220091 and 122001220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001220811) 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, 21170535 + ... + 21176296.

It is an arithmetic number, because the mean of its divisors is an integer number (15837715168).

Almost surely, 2^122001220111 is an apocalyptic number.

122001220111 is a deficient number, since it is larger than the sum of its proper divisors (4700501233).

122001220111 is an equidigital number, since it uses as much as digits as its factorization.

122001220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42346941.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122001220111 its reverse (111022100221), we get a palindrome (233023320332).

The spelling of 122001220111 in words is "one hundred twenty-two billion, one million, two hundred twenty thousand, one hundred eleven".