122201122121 has 8 divisors (see below), whose sum is σ = 131640574464. Its totient is φ = 112767293520.

The previous prime is 122201122103. The next prime is 122201122129. The reversal of 122201122121 is 121221102221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122201122121 is a prime.

It is a super-2 number, since 2×122201122121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122201122121.

It is not an unprimeable number, because it can be changed into a prime (122201122129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360745 + ... + 1447766.

It is an arithmetic number, because the mean of its divisors is an integer number (16455071808).

Almost surely, 2^122201122121 is an apocalyptic number.

It is an amenable number.

122201122121 is a deficient number, since it is larger than the sum of its proper divisors (9439452343).

122201122121 is a wasteful number, since it uses less digits than its factorization.

122201122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811871.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122201122121 its reverse (121221102221), we get a palindrome (243422224342).

The spelling of 122201122121 in words is "one hundred twenty-two billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty-one".