12210111122201 has 4 divisors (see below), whose sum is σ = 12297953648400. Its totient is φ = 12122268596004.

The previous prime is 12210111122179. The next prime is 12210111122219. The reversal of 12210111122201 is 10222111101221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12210111122201 is a prime.

It is a super-3 number, since 3×12210111122201³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12210111122201.

It is not an unprimeable number, because it can be changed into a prime (12210111122701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43921262891 + ... + 43921263168.

It is an arithmetic number, because the mean of its divisors is an integer number (3074488412100).

Almost surely, 2^{12210111122201} is an apocalyptic number.

It is an amenable number.

12210111122201 is a deficient number, since it is larger than the sum of its proper divisors (87842526199).

12210111122201 is an equidigital number, since it uses as much as digits as its factorization.

12210111122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87842526198.

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

Adding to 12210111122201 its reverse (10222111101221), we get a palindrome (22432222223422).

The spelling of 12210111122201 in words is "twelve trillion, two hundred ten billion, one hundred eleven million, one hundred twenty-two thousand, two hundred one".