12210111120221 has 24 divisors (see below), whose sum is σ = 14255137142784. Its totient is φ = 10427839007040.

The previous prime is 12210111120203. The next prime is 12210111120223. The reversal of 12210111120221 is 12202111101221.

12210111120221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12210111120221 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 12210111120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210111120223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313679666 + ... + 313718588.

It is an arithmetic number, because the mean of its divisors is an integer number (593964047616).

Almost surely, 2^{12210111120221} is an apocalyptic number.

It is an amenable number.

12210111120221 is a deficient number, since it is larger than the sum of its proper divisors (2045026022563).

12210111120221 is a wasteful number, since it uses less digits than its factorization.

12210111120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62001 (or 61994 counting only the distinct ones).

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

Adding to 12210111120221 its reverse (12202111101221), we get a palindrome (24412222221442).

The spelling of 12210111120221 in words is "twelve trillion, two hundred ten billion, one hundred eleven million, one hundred twenty thousand, two hundred twenty-one".