12103121222 has 4 divisors (see below), whose sum is σ = 18154681836. Its totient is φ = 6051560610.

The previous prime is 12103121221. The next prime is 12103121237. The reversal of 12103121222 is 22212130121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12103121222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103121221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025780304 + ... + 3025780307.

It is an arithmetic number, because the mean of its divisors is an integer number (4538670459).

Almost surely, 2^12103121222 is an apocalyptic number.

12103121222 is a deficient number, since it is larger than the sum of its proper divisors (6051560614).

12103121222 is an equidigital number, since it uses as much as digits as its factorization.

12103121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051560613.

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

Adding to 12103121222 its reverse (22212130121), we get a palindrome (34315251343).

The spelling of 12103121222 in words is "twelve billion, one hundred three million, one hundred twenty-one thousand, two hundred twenty-two".