12102310220 has 192 divisors, whose sum is σ = 34376832000. Its totient is φ = 3456138240.

The previous prime is 12102310219. The next prime is 12102310229. The reversal of 12102310220 is 2201320121.

It is a happy number.

It is a super-2 number, since 2×12102310220² (a number of 21 digits) contains 22 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 = 12102310195 and 12102310204.

It is not an unprimeable number, because it can be changed into a prime (12102310229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2780606 + ... + 2784954.

It is an arithmetic number, because the mean of its divisors is an integer number (179046000).

Almost surely, 2^12102310220 is an apocalyptic number.

12102310220 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 12102310220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17188416000).

12102310220 is an abundant number, since it is smaller than the sum of its proper divisors (22274521780).

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

12102310220 is a wasteful number, since it uses less digits than its factorization.

12102310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528 (or 4526 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12102310220 its reverse (2201320121), we get a palindrome (14303630341).

Subtracting from 12102310220 its reverse (2201320121), we obtain a palindrome (9900990099).

The spelling of 12102310220 in words is "twelve billion, one hundred two million, three hundred ten thousand, two hundred twenty".