12102201112212 has 18 divisors (see below), whose sum is σ = 30591675033738. Its totient is φ = 4034067037392.

The previous prime is 12102201112159. The next prime is 12102201112237. The reversal of 12102201112212 is 21221110220121.

12102201112212 is a `hidden beast` number, since 1 + 210 + 220 + 1 + 11 + 221 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10884100399236 + 1218100712976 = 3299106^2 + 1103676^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168086126523 + ... + 168086126594.

Almost surely, 2^{12102201112212} is an apocalyptic number.

12102201112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12102201112212 is an abundant number, since it is smaller than the sum of its proper divisors (18489473921526).

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

12102201112212 is a wasteful number, since it uses less digits than its factorization.

12102201112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336172253127 (or 336172253122 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12102201112212 its reverse (21221110220121), we get a palindrome (33323311332333).

The spelling of 12102201112212 in words is "twelve trillion, one hundred two billion, two hundred one million, one hundred twelve thousand, two hundred twelve".