12103311021122 has 4 divisors (see below), whose sum is σ = 18154966531686. Its totient is φ = 6051655510560.

The previous prime is 12103311021121. The next prime is 12103311021199. The reversal of 12103311021122 is 22112011330121.

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., 11222962304761 + 880348716361 = 3350069^2 + 938269^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12103311021094 and 12103311021103.

It is not an unprimeable number, because it can be changed into a prime (12103311021121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025827755279 + ... + 3025827755282.

Almost surely, 2^{12103311021122} is an apocalyptic number.

12103311021122 is a deficient number, since it is larger than the sum of its proper divisors (6051655510564).

12103311021122 is an equidigital number, since it uses as much as digits as its factorization.

12103311021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051655510563.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12103311021122 its reverse (22112011330121), we get a palindrome (34215322351243).

The spelling of 12103311021122 in words is "twelve trillion, one hundred three billion, three hundred eleven million, twenty-one thousand, one hundred twenty-two".