12102222011020 has 96 divisors (see below), whose sum is σ = 27252694425600. Its totient is φ = 4504261574400.

The previous prime is 12102222010981. The next prime is 12102222011083. The reversal of 12102222011020 is 2011022220121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12102222010985 and 12102222011003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2889075 + ... + 5705365.

It is an arithmetic number, because the mean of its divisors is an integer number (283882233600).

Almost surely, 2^{12102222011020} is an apocalyptic number.

12102222011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12102222011020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13626347212800).

12102222011020 is an abundant number, since it is smaller than the sum of its proper divisors (15150472414580).

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

12102222011020 is a wasteful number, since it uses less digits than its factorization.

12102222011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816599 (or 2816597 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12102222011020 its reverse (2011022220121), we get a palindrome (14113244231141).

The spelling of 12102222011020 in words is "twelve trillion, one hundred two billion, two hundred twenty-two million, eleven thousand, twenty".