122120111122 has 4 divisors (see below), whose sum is σ = 183180166686. Its totient is φ = 61060055560.

The previous prime is 122120111107. The next prime is 122120111143. The reversal of 122120111122 is 221111021221.

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., 112769027721 + 9351083401 = 335811^2 + 96701^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122120111096 and 122120111105.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30530027779 + ... + 30530027782.

Almost surely, 2^122120111122 is an apocalyptic number.

122120111122 is a deficient number, since it is larger than the sum of its proper divisors (61060055564).

122120111122 is an equidigital number, since it uses as much as digits as its factorization.

122120111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61060055563.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122120111122 its reverse (221111021221), we get a palindrome (343231132343).

The spelling of 122120111122 in words is "one hundred twenty-two billion, one hundred twenty million, one hundred eleven thousand, one hundred twenty-two".