12210202220 has 24 divisors (see below), whose sum is σ = 26076027600. Its totient is φ = 4801299392.

The previous prime is 12210202219. The next prime is 12210202229. The reversal of 12210202220 is 2220201221.

It is a junction number, because it is equal to n+sod(n) for n = 12210202195 and 12210202204.

It is not an unprimeable number, because it can be changed into a prime (12210202229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5172635 + ... + 5174994.

It is an arithmetic number, because the mean of its divisors is an integer number (1086501150).

Almost surely, 2^12210202220 is an apocalyptic number.

12210202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210202220 is an abundant number, since it is smaller than the sum of its proper divisors (13865825380).

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

12210202220 is a wasteful number, since it uses less digits than its factorization.

12210202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10347697 (or 10347695 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12210202220 its reverse (2220201221), we get a palindrome (14430403441).

Subtracting from 12210202220 its reverse (2220201221), we obtain a palindrome (9990000999).

The spelling of 12210202220 in words is "twelve billion, two hundred ten million, two hundred two thousand, two hundred twenty".