12121210322 has 24 divisors (see below), whose sum is σ = 20724222960. Its totient is φ = 5299959600.

The previous prime is 12121210291. The next prime is 12121210333. The reversal of 12121210322 is 22301212121.

It is a self number, because there is not a number n which added to its sum of digits gives 12121210322.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 937304 + ... + 950147.

It is an arithmetic number, because the mean of its divisors is an integer number (863509290).

Almost surely, 2^12121210322 is an apocalyptic number.

12121210322 is a deficient number, since it is larger than the sum of its proper divisors (8603012638).

12121210322 is a wasteful number, since it uses less digits than its factorization.

12121210322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887498 (or 1887485 counting only the distinct ones).

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

Adding to 12121210322 its reverse (22301212121), we get a palindrome (34422422443).

The spelling of 12121210322 in words is "twelve billion, one hundred twenty-one million, two hundred ten thousand, three hundred twenty-two".