12212110010121 has 16 divisors (see below), whose sum is σ = 18609052114944. Its totient is φ = 6978302611344.

The previous prime is 12212110010057. The next prime is 12212110010129. The reversal of 12212110010121 is 12101001121221.

It is a happy number.

It is not a de Polignac number, because 12212110010121 - 2⁶ = 12212110010057 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212110010121.

It is not an unprimeable number, because it can be changed into a prime (12212110010129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1489560 + ... + 5161686.

It is an arithmetic number, because the mean of its divisors is an integer number (1163065757184).

Almost surely, 2^{12212110010121} is an apocalyptic number.

It is an amenable number.

12212110010121 is a deficient number, since it is larger than the sum of its proper divisors (6396942104823).

12212110010121 is a wasteful number, since it uses less digits than its factorization.

12212110010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830500.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12212110010121 its reverse (12101001121221), we get a palindrome (24313111131342).

Subtracting from 12212110010121 its reverse (12101001121221), we obtain a square (111108888900 = 333330²).

It can be divided in two parts, 122121100 and 10121, that added together give a palindrome (122131221).

The spelling of 12212110010121 in words is "twelve trillion, two hundred twelve billion, one hundred ten million, ten thousand, one hundred twenty-one".