12020122220 has 24 divisors (see below), whose sum is σ = 25249695408. Its totient is φ = 4806632000.

The previous prime is 12020122157. The next prime is 12020122223. The reversal of 12020122220 is 2222102021.

It is a junction number, because it is equal to n+sod(n) for n = 12020122195 and 12020122204.

It is not an unprimeable number, because it can be changed into a prime (12020122223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17606 + ... + 156045.

It is an arithmetic number, because the mean of its divisors is an integer number (1052070642).

Almost surely, 2^12020122220 is an apocalyptic number.

12020122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020122220 is an abundant number, since it is smaller than the sum of its proper divisors (13229573188).

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

12020122220 is a wasteful number, since it uses less digits than its factorization.

12020122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177121 (or 177119 counting only the distinct ones).

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

Adding to 12020122220 its reverse (2222102021), we get a palindrome (14242224241).

The spelling of 12020122220 in words is "twelve billion, twenty million, one hundred twenty-two thousand, two hundred twenty".