12102101312220 has 36 divisors (see below), whose sum is σ = 36709707314280. Its totient is φ = 3227227016544.

The previous prime is 12102101312159. The next prime is 12102101312251. The reversal of 12102101312220 is 2221310120121.

12102101312220 is a `hidden beast` number, since 1 + 210 + 210 + 13 + 12 + 220 = 666.

12102101312220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12102101312193 and 12102101312202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33616947910 + ... + 33616948269.

Almost surely, 2^{12102101312220} is an apocalyptic number.

12102101312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102101312220 is an abundant number, since it is smaller than the sum of its proper divisors (24607606002060).

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

12102101312220 is a wasteful number, since it uses less digits than its factorization.

12102101312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67233896194 (or 67233896189 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12102101312220 its reverse (2221310120121), we get a palindrome (14323411432341).

The spelling of 12102101312220 in words is "twelve trillion, one hundred two billion, one hundred one million, three hundred twelve thousand, two hundred twenty".