122221110111101 has 8 divisors (see below), whose sum is σ = 122250436956504. Its totient is φ = 122191786250560.

The previous prime is 122221110111091. The next prime is 122221110111161. The reversal of 122221110111101 is 101111011122221.

It can be written as a sum of positive squares in 4 ways, for example, as 9048725772100 + 113172384339001 = 3008110^2 + 10638251^2 .

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 122221110111101 - 2³⁸ = 121946232204157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122221110111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221110111161) 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, 82262051 + ... + 83734623.

It is an arithmetic number, because the mean of its divisors is an integer number (15281304619563).

Almost surely, 2^{122221110111101} is an apocalyptic number.

It is an amenable number.

122221110111101 is a deficient number, since it is larger than the sum of its proper divisors (29326845403).

122221110111101 is a wasteful number, since it uses less digits than its factorization.

122221110111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492431.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 122221110111101 its reverse (101111011122221), we get a palindrome (223332121233322).

The spelling of 122221110111101 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, one hundred ten million, one hundred eleven thousand, one hundred one".