12212001201223 has 4 divisors (see below), whose sum is σ = 12212160926328. Its totient is φ = 12211841476120.

The previous prime is 12212001201217. The next prime is 12212001201233. The reversal of 12212001201223 is 32210210021221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12212001201223 - 2³⁷ = 12074562247751 is a prime.

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 12212001201223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212001201233) 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, 79747813 + ... + 79900798.

It is an arithmetic number, because the mean of its divisors is an integer number (3053040231582).

Almost surely, 2^{12212001201223} is an apocalyptic number.

12212001201223 is a deficient number, since it is larger than the sum of its proper divisors (159725105).

12212001201223 is an equidigital number, since it uses as much as digits as its factorization.

12212001201223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159725104.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12212001201223 its reverse (32210210021221), we get a palindrome (44422211222444).

The spelling of 12212001201223 in words is "twelve trillion, two hundred twelve billion, one million, two hundred one thousand, two hundred twenty-three".