12012021202212 has 120 divisors (see below), whose sum is σ = 32815733360256. Its totient is φ = 3827679976512.

The previous prime is 12012021202201. The next prime is 12012021202213. The reversal of 12012021202212 is 21220212021021.

It is a happy number.

12012021202212 is a `hidden beast` number, since 120 + 1 + 202 + 120 + 221 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12012021202213) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8517423 + ... + 9827030.

Almost surely, 2^{12012021202212} is an apocalyptic number.

12012021202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012021202212 is an abundant number, since it is smaller than the sum of its proper divisors (20803712158044).

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

12012021202212 is a wasteful number, since it uses less digits than its factorization.

12012021202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18344559 (or 18344548 counting only the distinct ones).

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

Adding to 12012021202212 its reverse (21220212021021), we get a palindrome (33232233223233).

The spelling of 12012021202212 in words is "twelve trillion, twelve billion, twenty-one million, two hundred two thousand, two hundred twelve".