12121222110022 has 16 divisors (see below), whose sum is σ = 18225858697200. Its totient is φ = 6045949745152.

The previous prime is 12121222109963. The next prime is 12121222110091. The reversal of 12121222110022 is 22001122212121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1717147 + ... + 5214502.

It is an arithmetic number, because the mean of its divisors is an integer number (1139116168575).

Almost surely, 2^{12121222110022} is an apocalyptic number.

12121222110022 is a deficient number, since it is larger than the sum of its proper divisors (6104636587178).

12121222110022 is a wasteful number, since it uses less digits than its factorization.

12121222110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6933767.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12121222110022 its reverse (22001122212121), we get a palindrome (34122344322143).

The spelling of 12121222110022 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred ten thousand, twenty-two".