12101220202212 has 72 divisors (see below), whose sum is σ = 30677557135680. Its totient is φ = 4022090304960.

The previous prime is 12101220202207. The next prime is 12101220202229. The reversal of 12101220202212 is 21220202210121.

It is a happy number.

12101220202212 is a `hidden beast` number, since 1 + 210 + 1 + 220 + 20 + 2 + 212 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141772387 + ... + 141857717.

It is an arithmetic number, because the mean of its divisors is an integer number (426077182440).

Almost surely, 2^{12101220202212} is an apocalyptic number.

12101220202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12101220202212 is an abundant number, since it is smaller than the sum of its proper divisors (18576336933468).

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

12101220202212 is a wasteful number, since it uses less digits than its factorization.

12101220202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96673 (or 96668 counting only the distinct ones).

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

Adding to 12101220202212 its reverse (21220202210121), we get a palindrome (33321422412333).

The spelling of 12101220202212 in words is "twelve trillion, one hundred one billion, two hundred twenty million, two hundred two thousand, two hundred twelve".