12202210111221 has 128 divisors (see below), whose sum is σ = 19912183603200. Its totient is φ = 7338855363840.

The previous prime is 12202210111213. The next prime is 12202210111229. The reversal of 12202210111221 is 12211101220221.

12202210111221 is a `hidden beast` number, since 1 + 220 + 2 + 210 + 1 + 11 + 221 = 666.

12202210111221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12202210111213) and next prime (12202210111229).

It is not a de Polignac number, because 12202210111221 - 2³ = 12202210111213 is a prime.

It is a super-2 number, since 2×12202210111221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12202210111194 and 12202210111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202210111229) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8363405790 + ... + 8363407248.

It is an arithmetic number, because the mean of its divisors is an integer number (155563934400).

Almost surely, 2^{12202210111221} is an apocalyptic number.

It is an amenable number.

12202210111221 is a deficient number, since it is larger than the sum of its proper divisors (7709973491979).

12202210111221 is a wasteful number, since it uses less digits than its factorization.

12202210111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968 (or 2962 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12202210111221 its reverse (12211101220221), we get a palindrome (24413311331442).

The spelling of 12202210111221 in words is "twelve trillion, two hundred two billion, two hundred ten million, one hundred eleven thousand, two hundred twenty-one".