12122202020 has 24 divisors (see below), whose sum is σ = 25567798200. Its totient is φ = 4827704832.

The previous prime is 12122202007. The next prime is 12122202091. The reversal of 12122202020 is 2020222121.

It can be written as a sum of positive squares in 4 ways, for example, as 3386308864 + 8735893156 = 58192^2 + 93466^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12122201986 and 12122202004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318805 + ... + 1327964.

It is an arithmetic number, because the mean of its divisors is an integer number (1065324925).

Almost surely, 2^12122202020 is an apocalyptic number.

12122202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122202020 is an abundant number, since it is smaller than the sum of its proper divisors (13445596180).

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

12122202020 is a wasteful number, since it uses less digits than its factorization.

12122202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647007 (or 2647005 counting only the distinct ones).

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

Adding to 12122202020 its reverse (2020222121), we get a palindrome (14142424141).

The spelling of 12122202020 in words is "twelve billion, one hundred twenty-two million, two hundred two thousand, twenty".