12011353212 has 24 divisors (see below), whose sum is σ = 28143763200. Its totient is φ = 3987031216.

The previous prime is 12011353183. The next prime is 12011353223. The reversal of 12011353212 is 21235311021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2091162 + ... + 2096897.

It is an arithmetic number, because the mean of its divisors is an integer number (1172656800).

Almost surely, 2^12011353212 is an apocalyptic number.

12011353212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12011353212 is an abundant number, since it is smaller than the sum of its proper divisors (16132409988).

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

12011353212 is a wasteful number, since it uses less digits than its factorization.

12011353212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188305 (or 4188303 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 12011353212 its reverse (21235311021), we get a palindrome (33246664233).

The spelling of 12011353212 in words is "twelve billion, eleven million, three hundred fifty-three thousand, two hundred twelve".