12102010211220 has 96 divisors (see below), whose sum is σ = 35371972465536. Its totient is φ = 3088505894400.

The previous prime is 12102010211191. The next prime is 12102010211227. The reversal of 12102010211220 is 2211201020121.

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 12102010211220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102010211227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44547826 + ... + 44818665.

It is an arithmetic number, because the mean of its divisors is an integer number (368458046516).

Almost surely, 2^{12102010211220} is an apocalyptic number.

12102010211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102010211220 is an abundant number, since it is smaller than the sum of its proper divisors (23269962254316).

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

12102010211220 is a wasteful number, since it uses less digits than its factorization.

12102010211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89366601 (or 89366599 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12102010211220 its reverse (2211201020121), we get a palindrome (14313211231341).

The spelling of 12102010211220 in words is "twelve trillion, one hundred two billion, ten million, two hundred eleven thousand, two hundred twenty".