12221010221202 has 24 divisors (see below), whose sum is σ = 27194500223436. Its totient is φ = 3963570882336.

The previous prime is 12221010221171. The next prime is 12221010221207. The reversal of 12221010221202 is 20212201012221.

It is a happy number.

12221010221202 is a `hidden beast` number, since 1 + 22 + 210 + 10 + 221 + 202 = 666.

12221010221202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12060193982841 + 160816238361 = 3472779^2 + 401019^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12221010221207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9174931933 + ... + 9174933264.

Almost surely, 2^{12221010221202} is an apocalyptic number.

12221010221202 is an abundant number, since it is smaller than the sum of its proper divisors (14973490002234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221010221202 is a wasteful number, since it uses less digits than its factorization.

12221010221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18349865242 (or 18349865239 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12221010221202 its reverse (20212201012221), we get a palindrome (32433211233423).

The spelling of 12221010221202 in words is "twelve trillion, two hundred twenty-one billion, ten million, two hundred twenty-one thousand, two hundred two".