2121212201122 has 16 divisors (see below), whose sum is σ = 3637575562752. Its totient is φ = 908787996000.

The previous prime is 2121212201047. The next prime is 2121212201123. The reversal of 2121212201122 is 2211022121212.

It is a self number, because there is not a number n which added to its sum of digits gives 2121212201122.

It is not an unprimeable number, because it can be changed into a prime (2121212201123) by changing a digit.

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, 25202098 + ... + 25286125.

It is an arithmetic number, because the mean of its divisors is an integer number (227348472672).

Almost surely, 2^{2121212201122} is an apocalyptic number.

2121212201122 is a deficient number, since it is larger than the sum of its proper divisors (1516363361630).

2121212201122 is a wasteful number, since it uses less digits than its factorization.

2121212201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50491233.

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

Adding to 2121212201122 its reverse (2211022121212), we get a palindrome (4332234322334).

The spelling of 2121212201122 in words is "two trillion, one hundred twenty-one billion, two hundred twelve million, two hundred one thousand, one hundred twenty-two".