122311220201 has 4 divisors (see below), whose sum is σ = 122661682500. Its totient is φ = 121960757904.

The previous prime is 122311220177. The next prime is 122311220233. The reversal of 122311220201 is 102022113221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92735475625 + 29575744576 = 304525^2 + 171976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122311220201 is a prime.

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 122311220201.

It is not an unprimeable number, because it can be changed into a prime (122311223201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175230626 + ... + 175231323.

It is an arithmetic number, because the mean of its divisors is an integer number (30665420625).

Almost surely, 2^122311220201 is an apocalyptic number.

It is an amenable number.

122311220201 is a deficient number, since it is larger than the sum of its proper divisors (350462299).

122311220201 is an equidigital number, since it uses as much as digits as its factorization.

122311220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350462298.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 122311220201 its reverse (102022113221), we get a palindrome (224333333422).

The spelling of 122311220201 in words is "one hundred twenty-two billion, three hundred eleven million, two hundred twenty thousand, two hundred one".