12102201220212 has 36 divisors (see below), whose sum is σ = 30592384149600. Its totient is φ = 4033973599632.

The previous prime is 12102201220189. The next prime is 12102201220229. The reversal of 12102201220212 is 21202210220121.

It is a happy number.

12102201220212 is a `hidden beast` number, since 1 + 2 + 10 + 220 + 1 + 220 + 212 = 666.

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 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, 2310678 + ... + 5435405.

It is an arithmetic number, because the mean of its divisors is an integer number (849788448600).

Almost surely, 2^{12102201220212} is an apocalyptic number.

12102201220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12102201220212 is an abundant number, since it is smaller than the sum of its proper divisors (18490182929388).

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

12102201220212 is a wasteful number, since it uses less digits than its factorization.

12102201220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7789492 (or 7789487 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12102201220212 its reverse (21202210220121), we get a palindrome (33304411440333).

The spelling of 12102201220212 in words is "twelve trillion, one hundred two billion, two hundred one million, two hundred twenty thousand, two hundred twelve".