12221102022210 has 64 divisors (see below), whose sum is σ = 32784752851200. Its totient is φ = 3239445793536.

The previous prime is 12221102022149. The next prime is 12221102022211. The reversal of 12221102022210 is 1222020112221.

It is a happy number.

12221102022210 is a `hidden beast` number, since 12 + 221 + 10 + 202 + 221 + 0 = 666.

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 (12221102022211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135473895 + ... + 135564074.

It is an arithmetic number, because the mean of its divisors is an integer number (512261763300).

Almost surely, 2^{12221102022210} is an apocalyptic number.

12221102022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221102022210 is an abundant number, since it is smaller than the sum of its proper divisors (20563650828990).

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

12221102022210 is a wasteful number, since it uses less digits than its factorization.

12221102022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271038152 (or 271038146 counting only the distinct ones).

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

Adding to 12221102022210 its reverse (1222020112221), we get a palindrome (13443122134431).

The spelling of 12221102022210 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, twenty-two thousand, two hundred ten".