12222010012121 has 16 divisors (see below), whose sum is σ = 15042649138944. Its totient is φ = 9670049089344.

The previous prime is 12222010012033. The next prime is 12222010012213. The reversal of 12222010012121 is 12121001022221.

It is a de Polignac number, because none of the positive numbers 2^k-12222010012121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12222010012121.

It is not an unprimeable number, because it can be changed into a prime (12222010012621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7555631 + ... + 9029483.

It is an arithmetic number, because the mean of its divisors is an integer number (940165571184).

Almost surely, 2^{12222010012121} is an apocalyptic number.

It is an amenable number.

12222010012121 is a deficient number, since it is larger than the sum of its proper divisors (2820639126823).

12222010012121 is a wasteful number, since it uses less digits than its factorization.

12222010012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565000.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12222010012121 its reverse (12121001022221), we get a palindrome (24343011034342).

It can be divided in two parts, 122220100 and 12121, that added together give a palindrome (122232221).

The spelling of 12222010012121 in words is "twelve trillion, two hundred twenty-two billion, ten million, twelve thousand, one hundred twenty-one".