12001011212222 has 16 divisors (see below), whose sum is σ = 18440896253472. Its totient is φ = 5854050842880.

The previous prime is 12001011212213. The next prime is 12001011212227. The reversal of 12001011212222 is 22221211010021.

It is a self number, because there is not a number n which added to its sum of digits gives 12001011212222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001011212227) 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 7 ways as a sum of consecutive naturals, for example, 3636503 + ... + 6101325.

It is an arithmetic number, because the mean of its divisors is an integer number (1152556015842).

Almost surely, 2^{12001011212222} is an apocalyptic number.

12001011212222 is a deficient number, since it is larger than the sum of its proper divisors (6439885041250).

12001011212222 is a wasteful number, since it uses less digits than its factorization.

12001011212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524243.

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

Adding to 12001011212222 its reverse (22221211010021), we get a palindrome (34222222222243).

The spelling of 12001011212222 in words is "twelve trillion, one billion, eleven million, two hundred twelve thousand, two hundred twenty-two".