12212212111001 has 16 divisors (see below), whose sum is σ = 14185861272960. Its totient is φ = 10295830788480.

The previous prime is 12212212110977. The next prime is 12212212111061. The reversal of 12212212111001 is 10011121221221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212212111001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212212111061) 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 15 ways as a sum of consecutive naturals, for example, 28038050 + ... + 28470276.

It is an arithmetic number, because the mean of its divisors is an integer number (886616329560).

Almost surely, 2^{12212212111001} is an apocalyptic number.

It is an amenable number.

12212212111001 is a deficient number, since it is larger than the sum of its proper divisors (1973649161959).

12212212111001 is an equidigital number, since it uses as much as digits as its factorization.

12212212111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498464.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12212212111001 its reverse (10011121221221), we get a palindrome (22223333332222).

The spelling of 12212212111001 in words is "twelve trillion, two hundred twelve billion, two hundred twelve million, one hundred eleven thousand, one".