122200121122 has 4 divisors (see below), whose sum is σ = 183300181686. Its totient is φ = 61100060560.

The previous prime is 122200121081. The next prime is 122200121159. The reversal of 122200121122 is 221121002221.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 118041032041 + 4159089081 = 343571^2 + 64491^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122200121096 and 122200121105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30550030279 + ... + 30550030282.

Almost surely, 2^122200121122 is an apocalyptic number.

122200121122 is a deficient number, since it is larger than the sum of its proper divisors (61100060564).

122200121122 is an equidigital number, since it uses as much as digits as its factorization.

122200121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61100060563.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122200121122 its reverse (221121002221), we get a palindrome (343321123343).

The spelling of 122200121122 in words is "one hundred twenty-two billion, two hundred million, one hundred twenty-one thousand, one hundred twenty-two".