12010111212 has 24 divisors (see below), whose sum is σ = 30571192512. Its totient is φ = 3639427600.

The previous prime is 12010111153. The next prime is 12010111229. The reversal of 12010111212 is 21211101021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45492714 + ... + 45492977.

It is an arithmetic number, because the mean of its divisors is an integer number (1273799688).

Almost surely, 2^12010111212 is an apocalyptic number.

12010111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12010111212 is an abundant number, since it is smaller than the sum of its proper divisors (18561081300).

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

12010111212 is a wasteful number, since it uses less digits than its factorization.

12010111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90985709 (or 90985707 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12010111212 its reverse (21211101021), we get a palindrome (33221212233).

The spelling of 12010111212 in words is "twelve billion, ten million, one hundred eleven thousand, two hundred twelve".