12020111122 has 16 divisors (see below), whose sum is σ = 18772720344. Its totient is φ = 5767344000.

The previous prime is 12020111107. The next prime is 12020111149. The reversal of 12020111122 is 22111102021.

It can be written as a sum of positive squares in 4 ways, for example, as 1128892801 + 10891218321 = 33599^2 + 104361^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196529 + ... + 1206532.

Almost surely, 2^12020111122 is an apocalyptic number.

12020111122 is a deficient number, since it is larger than the sum of its proper divisors (6752609222).

12020111122 is a wasteful number, since it uses less digits than its factorization.

12020111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403165.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12020111122 its reverse (22111102021), we get a palindrome (34131213143).

The spelling of 12020111122 in words is "twelve billion, twenty million, one hundred eleven thousand, one hundred twenty-two".