12220202120 has 96 divisors (see below), whose sum is σ = 33087576600. Its totient is φ = 4045289472.

The previous prime is 12220202119. The next prime is 12220202129. The reversal of 12220202120 is 2120202221.

It can be written as a sum of positive squares in 4 ways, for example, as 5970034756 + 6250167364 = 77266^2 + 79058^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12220202095 and 12220202104.

It is not an unprimeable number, because it can be changed into a prime (12220202129) 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, 50657 + ... + 164336.

Almost surely, 2^12220202120 is an apocalyptic number.

12220202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220202120 is an abundant number, since it is smaller than the sum of its proper divisors (20867374480).

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

12220202120 is a wasteful number, since it uses less digits than its factorization.

12220202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215047 (or 215036 counting only the distinct ones).

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

Adding to 12220202120 its reverse (2120202221), we get a palindrome (14340404341).

The spelling of 12220202120 in words is "twelve billion, two hundred twenty million, two hundred two thousand, one hundred twenty".