12102113220 has 48 divisors (see below), whose sum is σ = 33962483520. Its totient is φ = 3219938176.

The previous prime is 12102113197. The next prime is 12102113249. The reversal of 12102113220 is 2231120121.

It is a super-2 number, since 2×12102113220² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12102113220.

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, 201075 + ... + 254234.

It is an arithmetic number, because the mean of its divisors is an integer number (707551740).

Almost surely, 2^12102113220 is an apocalyptic number.

12102113220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102113220 is an abundant number, since it is smaller than the sum of its proper divisors (21860370300).

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

12102113220 is a wasteful number, since it uses less digits than its factorization.

12102113220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455764 (or 455762 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12102113220 its reverse (2231120121), we get a palindrome (14333233341).

The spelling of 12102113220 in words is "twelve billion, one hundred two million, one hundred thirteen thousand, two hundred twenty".