12120202220 has 48 divisors (see below), whose sum is σ = 30619464960. Its totient is φ = 3936786624.

The previous prime is 12120202219. The next prime is 12120202253. The reversal of 12120202220 is 2220202121.

It is a super-3 number, since 3×12120202220³ (a number of 31 digits) contains 333 as substring.

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 = 12120202195 and 12120202204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2275574 + ... + 2280893.

It is an arithmetic number, because the mean of its divisors is an integer number (637905520).

Almost surely, 2^12120202220 is an apocalyptic number.

12120202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120202220 is an abundant number, since it is smaller than the sum of its proper divisors (18499262740).

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

12120202220 is a wasteful number, since it uses less digits than its factorization.

12120202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556502 (or 4556500 counting only the distinct ones).

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

Adding to 12120202220 its reverse (2220202121), we get a palindrome (14340404341).

Subtracting from 12120202220 its reverse (2220202121), we obtain a palindrome (9900000099).

The spelling of 12120202220 in words is "twelve billion, one hundred twenty million, two hundred two thousand, two hundred twenty".