12120201220212 has 36 divisors (see below), whose sum is σ = 31969226409120. Its totient is φ = 3864411982992.

The previous prime is 12120201220199. The next prime is 12120201220213. The reversal of 12120201220212 is 21202210202121.

It is a happy number.

12120201220212 is a `hidden beast` number, since 1 + 212 + 0 + 20 + 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 not an unprimeable number, because it can be changed into a prime (12120201220213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7318961262 + ... + 7318962917.

It is an arithmetic number, because the mean of its divisors is an integer number (888034066920).

Almost surely, 2^{12120201220212} is an apocalyptic number.

12120201220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120201220212 is an abundant number, since it is smaller than the sum of its proper divisors (19849025188908).

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

12120201220212 is a wasteful number, since it uses less digits than its factorization.

12120201220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14637924212 (or 14637924207 counting only the distinct ones).

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

Adding to 12120201220212 its reverse (21202210202121), we get a palindrome (33322411422333).

The spelling of 12120201220212 in words is "twelve trillion, one hundred twenty billion, two hundred one million, two hundred twenty thousand, two hundred twelve".